We Analyzed 13 Email Warmup Tools Based On 100+ User Reviews
Are you searching for the best email warmup tool but feeling overwhelmed by too many options?
Not every tool out there is built for you because each one serves different needs.
We did the deep research for you and reviewed 13 of the best email warmup tools for various uses.
We’ve broken down the best warmup tools based on real use cases:
- If you want full setup + automation
- If you're on a tight budget
- If you're repairing deliverability issues
- If you're scaling to 20+ inboxes
Let’s get into it.
TL;DR: Best Email Warmup Tools in 2025
- Best for Full Setup and Automation: Warmforge
- Best for Deliverability Reports: Mailreach
- Best Native Lemlist Warmup: Lemwarm
- Best for Reply Simulation & Reputation Repair: InboxAlly
- Best AI-Powered Reply Customization: Mailivery
- Best Integrated Warmup in Outreach Tool: Mailstand
- Best for Smartlead Users: Smartlead Native Warmup
- Best Simple SMTP Warmup: Mailwarm
- Best for Bulk Inbox Warmup: Warmup Inbox
- Best Custom Warmup Schedules: Warmbox
- Best Scalable AI Warmup for Agencies: TrulyInbox
- Best AI Warmup with Content Optimization: Instantly
Here’s How UniteSync Reached 11,700 Creators with Just $2.86 CAC
UniteSync used Salesforge, Mailforge, and Warmforge to hit an 85.26% reply rate and onboard new customers daily — without burning budget or hitting spam folders.
Read the full case study →
See the exact tools, strategy, and results.
How We Tested and Ranked the Best Email Warm-Up Tools
To make this list actually useful, we reviewed 100+ real user reviews and scored each email warmup tool based on five things that matter the most
- Does it actually improve inbox placement on Gmail and Outlook?
- Does it support SPF, DKIM, blacklist checks, and other infrastructure setup?
- Does it automate everything (like replies, ramp-up, pauses)?
- Is it beginner-friendly and scalable for 1 to 50+ inboxes?
- Do real users say it works well (on G2, Reddit, cold email groups)?
We Reviewed 20+ Email Warm-Up Tools (Here Are the Best 13)
These are the email warmup tools that do more than just warm up your inbox.
They offer full domain setup, better inbox placement, and automation that saves you hours.
They’re ideal if you’re running cold outreach at scale, managing multiple inboxes, or just want everything handled without the usual tech hassle.
Let’s start with the top pick:
1. Warmforge
Warmforge is an email warm-up platform built for cold email teams that care about deliverability at scale.
Unlike basic warm-up tools, it offers pre-warmed inboxes, domain-level health checks, auto-warm strategies, and ESP-specific warm-up engines, all in a plug-and-play dashboard.
Whether you're warming 5 or 500 inboxes, Warmforge gives you the foundation to land in inboxes, not spam folders.
Key Features
- Full email warm-up: Gradually sends and receives emails to build trust
- Auto SPF, DKIM, and DMARC: Sets up all DNS records for you
- IP warm-up: Builds a clean sending reputation for new IPs
- Inbox placement tracking: Shows whether emails land in inbox or spam
- Multi-inbox scaling: Handles warm-up for 10 to 100+ inboxes smoothly
Pros
- Super quick setup – inboxes are ready to go in minutes
- Simple, intuitive dashboard – great even if you're not technical
- Delivers steady, reliable warm-up performance
- Support team is fast and helpful when issues pop up
- Plays nicely with most cold email platforms
Read the full user review
Cons
- Some advanced features take a little time to figure out
- Initial setup may feel slow in some cases
Who It’s Best For
- Cold email agencies
- Consultants sending at scale
- Startups with multiple domains or inboxes
- Teams that want zero manual setup
Get 1 Free Warm-Up Slot for Google and Microsoft Inboxes Plus a Free Inbox Placement Test
Warmforge Pricing
Warmforge keeps pricing straightforward, with flexible billing options and no hidden fees.
You only pay for the inboxes you use.
- $12/month per inbox
- Save up to 25% with quarterly or yearly billing
Optional Tests:
- Pro: 100 placement tests/mo – $32.50/month (annual)
- Growth: Unlimited – $140.80/year
Our Verdict
If you want email warmup that includes backend protection too, Warmforge gives you the setup, automation, and results, without needing a technical team.
2. Folderly
Folderly is a premium email deliverability platform built to fix spam issues and improve inbox placement through deep diagnostics, custom warm-up strategies, and infrastructure audits.
It’s for teams that need advanced monitoring, reputation repair, and hands-on support, not just basic warm-up.
Key Features
- AI warm-up with reply simulation to mimic real conversations
- Inbox placement dashboard for Gmail, Outlook, and more
- ESP-specific tracking across different email providers
- Content-based spam testing including HTML and image checks
- Centralized client management for agencies with multiple domains
Pros
- Easy to set up, even for non-technical users
- Clear inbox placement reports
- Improves inbox placement and open rates
- Strategic support and deliverability guidance
- Simple UI with actionable insights
Read the full user review here
Cons
- Sends high warm-up volume without user control
- Algorithm may misfire and block real emails
- No manual pacing control for warm-up
- Risk of bounces and domain reputation issues
- Higher pricing compared to other tools
- No spam testing for emails with images
- Potential privacy concerns during audits
Read the full user review
Who It’s Best For
- Teams struggling with spam or low open rates
- Agencies handling client inbox issues
- Businesses with aged domains needing cleanup
- Anyone looking to repair email performance, not just warm up
Folderly Pricing
Folderly isn’t cheap. Here’s the pricing:
Monthly Pricing (Per Mailbox)
- 1–9 mailboxes: $120/month
- 10–24 mailboxes: $90/month
- 25–99 mailboxes: $70/month
- 100+ mailboxes: Custom quote
Annual plans offer up to 20% savings, making it more cost-effective for teams.
Our Verdict
Folderly isn’t just for warming up; it’s for fixing deeper deliverability problems.
If your emails keep landing in spam, Folderly helps you identify and resolve the issues to restore your sender reputation and inbox placement.
3. InboxAlly
InboxAlly is a reputation repair and inbox placement tool that uses pre-trained seed inboxes to simulate real human behavior on your cold emails, not just warm-up traffic.
It’s best for senders who want more than basic warmup and are targeting better engagement signals with Gmail, Outlook, and Yahoo.
Key Features
- Real Engagement: Simulates opens, replies, and clicks on your actual cold emails.
- Spam Recovery: Pulls emails out of spam to restore domain reputation.
- Custom Actions: Set unique behaviors like marking as important or replying.
- ESP Targeting: Improves inboxing across Gmail, Outlook, Yahoo, etc.
- Placement Reports: Tracks where your emails land in real inboxes.
- No DNS Setup Needed: Runs without changes to SPF, DKIM, or adding trackers.
Pros
- Actually improves inbox placement using smart reply simulation and behavioral patterns
- Gives you full control over warm-up pacing, which helps prevent spam flags
- Ideal for teams managing multiple inboxes in one place
- Especially effective when paired with high-volume outreach setups
Cons
- Expensive compared to tools that offer warm-up plus outreach
- No help with domain setup or authentication issues (like SPF/DKIM)
- Not beginner-friendly – setup and optimization require more effort
- No direct email sending or cold email campaign support
- Lacks live chat or fast-response support for urgent deliverability issues
Who It’s Best For
- Cold emailers focused on Gmail deliverability
- Teams that want more realistic engagement during warmup
- Users who already have SPF and DKIM set up
- Agencies warming client inboxes with full control
Inbox Ally Pricing:
Here’s how the plans break down:
- Starter – $149/month for 1 sender, 100 seed inboxes/day
- Plus – $645/month for 5 senders, 500 seed inboxes/day
- Premium – $1,190/month for 10 senders, 1,000 seed inboxes/day + onboarding & weekly check-ins
- Enterprise – Custom pricing, unlimited senders, scaled for high-volume inbox placement
Our Verdict
It’s not cheap, but if you’re targeting Gmail or need high inbox placement fast, it’s a strong option.
4. Mailreach
Mailreach is a precision-focused email warm-up tool that emphasizes real-time inbox placement tracking, visual sender reputation scoring, and granular warm-up control.
It measures warm-up speeds for Gmail, Outlook, and Yahoo, and provides detailed performance breakdowns for each inbox, making it a strong choice for agencies managing 100+ inboxes that need visibility, control, and reliable trust signals in one platform.
Key Features
- Inbox placement tracking – Shows where your emails land
- Custom ESP warm-up control – Lets you adjust warm-up pacing per provider
- Visual reputation scores – Displays real-time sender health with easy-to-read trends.
- Real-time deliverability alerts – Notifies you of DNS issues, blacklists, or inboxing
- Scales across teams – Supports 100+ inboxes with user roles and shared analytics.
Pros
- Easy to set up, even for beginners
- Visual dashboard with live domain scores
- Boosts deliverability and inbox placement
- Fully automated warm-up system
- No outreach features, so fewer risks
Read the full user review
Cons
- Pricing is high for small senders
- Few advanced features or customizations
- Interface can lag at high volumes
- Support response can be slow at times
- Onboarding may confuse non-technical users
- Less flexible than outreach-integrated tools
Read the full user review
Who It’s Best For
- Agencies that already handle their DNS setup
- Teams that want clear spam insights and warm-up tracking
- Cold emailers who prefer a clean dashboard overall technical setup help
Mailreach Pricing
Mailreach offers tiered pricing based on how many inboxes you warm up.
The more you add, the less you pay per inbox, making it scalable for solo senders, teams, and agencies.
Pricing (Monthly)
- 1–5 inboxes: $25/inbox - best for individuals or small teams
- 6–20 inboxes: $19.50/inbox - suited for consultants and growing teams
- 21–50 inboxes: $18/inbox - optimized for larger teams
- 50+ inboxes: $16/inbox - built for agencies and high-volume senders
All plans include full warm-up automation, spam testing, and inbox tracking.
Our Verdict
Mailreach is a solid pick if your domain is already set up and you want to monitor inbox placement closely.
It won’t configure SPF or DKIM for you, but it gives you the clarity to know if your warmup is working.
5. Lemwarm
Lemwarm is Lemlist’s built-in warm-up engine that works directly with your live campaigns, warming the same inboxes you use for outreach rather than isolated test accounts.
It simulates real email conversations, tracks placement within Lemlist, and automatically pauses warm-up when a campaign is running.
Because it’s fully integrated with Lemlist’s, it’s a great fit for anyone who wants automated reputation building seamlessly connected to active sales workflows.
Key Features
- Auto Reply Simulation: Sends smart replies to mimic real conversations.
- Inbox & Blacklist Monitoring: Tracks spam placement and blacklist status.
- Smart Sync with Campaigns: Pauses warmup when campaigns are active.
- One-Click Setup: Instantly enabled from your Lemlist account.
- Gradual Volume Control: Safely increases email volume over time.
Pros
- Easy to use if you're already inside the Lemlist platform
- Fully automated warm-up with reply simulation
- Tracks blacklist status and inbox placement
- Smooth experience for solo users and small teams
- Works well when paired with Lemlist campaigns
Cons
- Only works with Lemlist, not a standalone tool
- Limited control over pacing and warm-up strategy
- Advanced controls require higher-tier plans
- No support for SMTP or external email platforms
- Doesn’t handle DNS setup like SPF or DKIM
- Not designed to scale across multiple domains or inboxes
Who It’s Best For
- Lemlist users who want a warm-up built in
- Founders or solo marketers running light cold campaigns
- Teams that want a simple, automatic warm-up without extra tools
Lemwarm Pricing
Lemwarm offers two straightforward plans based on how personalized you want your warmup to be.
You can pay monthly, quarterly (save 10%), or yearly (save 20%).
- Essential Plan – Starts at $24/month (yearly)
Basic warm-up, reports, and 20K inbox network.
- Smart Plan – Starts at $40/month (yearly)
Adds personalized warm-up emails and real-template warm-up.
- Custom Plan – For 10+ inboxes, pricing on request.
Verdict
Lemwarm is great if you’re already using Lemlist.
It keeps warmup simple and automatic, but if you need deeper deliverability control or DNS help, you’ll need to pair it with another tool.
6. Mailivery
Mailivery is built to simulate human replies using AI personas, not just send warm-up emails.
Each inbox in Mailivery gets a unique identity with custom sender behavior (language style, timezone, industry) to trigger authentic engagement signals.
It also runs blacklist checks, inbox placement tests, and lets you fully customize reply rates, timing, and templates, something most warm-up tools don’t offer.
Key Features
- AI Reply Simulation: Uses AI personas for natural replies.
- Custom Identities: Realistic sender profiles per inbox.
- Blacklist Alerts: Monitors domain/IP blacklists.
- Inbox Placement: Tracks inbox vs. spam rates.
- Volume Control: Adjustable send and reply pacing.
- Template Warmup: Uses real cold email content.
- Outreach Integration: Works with Lemlist, Instantly, etc.
Pros
- AI-generated replies look human and natural
- Clean dashboard with easy tracking
- Works well with Gmail and Outlook
- Easy to use for solo users and teams
Cons
- No DNS setup or domain management
- Limited advanced reporting tools
- Customization options can be limited
- No built-in blacklist removal services
- Occasional delays reported in reply simulations
- Support response times can vary
Who It’s Best For
- Cold emailers who want smarter replies during warmup
- Teams already managing DNS and domain setup
- Founders who want a simple, AI-enhanced warmup tool
Mailivery Pricing
Mailivery offers flexible plans depending on how many warmup emails you want to send each day.
- Starters: $29/month, 100 emails/day, 2 blacklist monitors
- Professional: $79/month, 600 emails/day, 10 blacklist monitors
- Business: $199/month, 2,000 emails/day, 50 blacklist monitors
Note: Unlimited inboxes, Free 7-day trial.
Verdict
Mailivery works well if you want your warmup to look and feel more real.
It’s not for DNS or infra setup, but if you're focused on engagement and inbox placement, it's a smart middle-tier option.
7. Mailstand
Mailstand is a cold outreach platform that includes built-in email warmup alongside campaign tools.
If you're looking to manage both outreach and warmup in one place, it offers a convenient all-in-one setup.
It doesn't offer deep DNS configuration or spam diagnostics, but it's useful for teams who want to run campaigns and warm inboxes from the same dashboard.
Key Features
- Multi-Inbox Warmup: Supports warming up to 10+ inboxes simultaneously.
- Spam Trigger Detection: Analyzes emails to identify potential spam risks.
- Inbox Placement Monitoring: Tracks where emails land in Gmail, Outlook, and others.
- Automated Warmup Schedule: Sends warmup emails gradually to build reputation safely.
- No Complex Setup: Easy activation without technical knowledge needed.
- Affordable Plans: Designed for small teams and startups on a budget.
Pros
- Warmup built directly into the outreach platform
- Automates replies and volume ramp-up
- Simple management of multiple inboxes
- Easy to use for small teams and solo senders
Cons
- Only useful if you use Mailstand for outreach
- No DNS, blacklist, or spam testing features
- Limited customization options for warmup pacing
- Lacks detailed deliverability analytics
Who It’s Best For
- Cold emailers already using Mailstand
- Small teams that want campaign + warmup in one place
- Users who don’t need advanced DNS or spam monitoring
Mailstand Pricing
Mailstand keeps pricing lean and transparent, focusing on the number of mailboxes you sync.
You can try it free for 7 days, and cancel anytime.
- $12/month for 1 mailbox, unlimited contacts/emails
- $35/month for up to 3 mailboxes, ideal for small teams
- $50/month for up to 5 mailboxes, good for consultants
- $95/month for up to 10 mailboxes, for growing teams
- Unlimited plan available with custom pricing for high-volume senders
Our Verdict
Mailstand is a good choice if you want to keep warm-up and outreach under one roof.
It’s not built for deep diagnostics, but for basic warm-up inside your campaign tool; it works well.
8. Smartlead Native Warmup
Smartlead is a built-in warm-up system tailored for Smartlead users that automatically ramps up sending volume across multiple dynamic IP addresses while simulating realistic AI-driven replies.
It tightly integrates with Smartlead’s outreach engine to synchronize warm-up pacing with live campaigns, ensuring smooth reputation growth and preventing inbox blocks for large-scale cold email operations.
Key Features
- Automated ramp-up: Gradually increases send volume with AI-driven replies.
- Dynamic IP rotation: Distributes emails across multiple IPs to protect reputation.
- Campaign sync: Aligns warm-up pacing with live outreach campaigns.
- Unlimited warmup: Supports unlimited email accounts within Smartlead.
- Real-time analytics: Tracks deliverability and engagement metrics.
Pros
- Fully automatic, runs in the background without manual input
- Works smoothly with Gmail and Outlook
- Ideal for scaling inboxes within one platform
Cons
- Only available for Smartlead outreach users
- No DNS setup or blacklist monitoring included
- Limited customization for warm-up pacing
- Lacks advanced reporting and deliverability diagnostics
Who It’s Best For
- Smartlead users who want built-in warmup
- Solo founders or teams doing outreach inside Smartlead
- Users who don’t need extra tools for domain setup or diagnostics
Smartlead warmup Pricing
Smartlead offers flexible plans for solo senders, teams, and agencies, all with unlimited warmup and email accounts included.
- Basic: $39/month - 2,000 leads, 6,000 emails, API access, 24h support
- Pro: $94/month - 30,000 leads, 150,000 emails, ChatGPT-4, blocklists, priority support, unlimited seats
- Custom: From $174/month - Up to 12M leads, fully customizable for agencies
- Add-On: Client accounts at $29/month per client for managing separate campaigns
Our Verdict
If you’re already using Smartlead, the native warmup is a convenient and hands-free solution.
It’s not meant for standalone use or deep technical fixes, but it handles basic inbox warmup well inside the outreach flow.
9. Warmup Inbox
Warmup Inbox offers per-inbox customizable warm-up speeds and volumes and supports bulk warm-up for hundreds of accounts simultaneously, all through an intuitive dashboard with detailed spam and inbox placement testing.
This combination makes it a go-to for agencies and large teams needing precise, scalable reputation management without manual overhead.
Key Feature
- Large Verified Network: Uses 30,000+ real inboxes for genuine engagement.
- Custom Warmup Control: Adjust sending speed and volume per inbox.
- Bulk Warmup Support: Warm hundreds of inboxes simultaneously.
- Inbox Placement Testing: Tracks if emails land in inbox or spam.
- Spam Trigger Analysis: Detects risky content in emails.
- Intuitive Dashboard: Easy monitoring and management for teams.
Pros
- Quick setup, inbox ready in minutes
- Simple dashboard with health scores
- Boosts deliverability reliably
- Scales to 1,000+ inboxes
- Affordable compared to premium tools
Read the full user review
Cons
- Limited ESP targeting without upgrade
- Manual filtering of warm-up emails
- No domain health diagnostics
- Support limited to chat, no calls
- Seat management can be tricky
- Limited team controls at scale
Read the full user review
Who It’s Best For
- Solo users or freelancers starting cold email
- Small teams that just need basic warmup without complexity
- People who already have SPF and DKIM set up elsewhere
Warmup Inbox Pricing
Warmup Inbox offers three plans based on how many warmup emails you need.
- Basic: $19/month or $228/year
- Pro: $59/month or $708/year
- Max: $99/month or $1,188/year
Verdict
Warmup Inbox is great if you just want to warm up your domain safely and affordably, without any technical steps. It won’t help with setup or spam issues, but for basic warmup, it gets the job done.
10. Mailwarm
Mailwarm is an automated email warm-up service designed to enhance email deliverability by simulating natural email interactions.
Upon connecting your inbox via SMTP, Mailwarm gradually increases sending volume, mimicking human behavior to build trust with email service providers.
There’s no DNS help or advanced tracking, but it’s a solid option if you want manual control over your warmup schedule and already have your domain setup sorted.
Mailwarm Key Features
- Automated Warm-Up: Gradually increases send volume via real SMTP connections
- Real Inbox Interaction: Simulates natural opens and replies to boost reputation
- Blacklist Monitoring: Tracks and alerts if email is blacklisted
- Daily Activity Reports: Shows warm-up progress with clear dashboards
- Easy SMTP Integration: Connects seamlessly with most providers
- Simple User Interface: Quick setup and easy for small teams
Pros
- Easy to set up with SMTP integration
- Simulates real opens and replies for natural engagement
- Provides clear daily warm-up reports
- Monitors blacklist status with alerts
- Simple interface ideal for small teams
Cons
- No DNS or domain management features
- Limited advanced analytics and customization
- Reply simulation quality can vary
- No integration with outreach platforms
- Support response times can be slow
Who It’s Best For
- Cold emailers who want control over warmup speed
- Users who already configured SPF and DKIM
- Small teams looking for a no-frills warmup tool
Mailwarm Pricing
Mailwarm offers three warmup plans based on how many emails you want to send daily and how many inboxes you’re managing. You can pay monthly or save more by choosing the annual option.
- Starter: $29/month - up to 100 emails/day, 2 blacklist monitors, unlimited inboxes
- Professional: $79/month - up to 600 emails/day, 10 blacklist monitors, unlimited inboxes
- Business: $199/month - up to 2,000 emails/day, 50 blacklist monitors, unlimited inboxes
Note: Free 7-day trial available on all plans.
Verdict
Mailwarm gives you manual control without the extras. If you’ve already handled your domain setup and just want consistent warmup behavior, it’s a straightforward choice, though a bit pricey compared to similar tools.
11. Warmbox
Warmbox is a visual and customizable email warmup tool that helps you land in the inbox instead of spam.
It uses AI-generated replies, real inbox interactions, and smart scheduling to build a natural sender reputation.
It’s a good fit for users who want more control and visibility over how their warmup behaves, including reply rates, warmup topics, and daily limits.
Key Features
- Multi-Inbox Warmup: Supports warming multiple inboxes at once
- Spam Trigger Detection: Identifies risky content in your emails
- Inbox Placement Tracking: Monitors where emails land (Inbox, Spam)
- Automated Scheduling: Sends warm-up emails on a smart, gradual schedule
- Simple Setup: No technical skills required for activation
- Affordable Pricing: Designed for small teams and solo senders
Pros
- Built into the outreach platform for seamless use
- Automates replies and volume ramp-up
- Easy inbox management for multiple accounts
- User-friendly for small teams and individuals
Cons
- Only useful if you use Warmbox for outreach
- No DNS, blacklist, or spam testing tools
- Limited warm-up pacing customization
- Lacks detailed deliverability analytics
Who It’s Best For
- Cold emailers who want custom warmup behavior
- Users looking for real-time dashboards and reply control
- Teams that already have SPF and DKIM configured
Warmbox Pricing
Warmbox offers three plans based on how many warm-up emails you want to send daily. All plans are per inbox, with discounts for half-yearly and yearly billing.
- Solo: $15/month for 1 inbox, 50 emails/day, premium support
- Startup: $69/month for 3 inboxes, 250 emails/day, premium support
- Growth: $139/month for 6 inboxes, 500 emails/day, enterprise support
- Team: Custom pricing for larger teams with tailored features
12. TrulyInbox
TrulyInbox is a lightweight email warmup tool built for affordability and simplicity.
It focuses on getting your inbox out of spam folders by sending and receiving emails from a real network of warm inboxes, all without any technical setup.
If you're just starting with cold outreach or warming up a few domains, TrulyInbox keeps it lean and beginner-friendly.
Key Features
- AI-Powered Engagement: Mimics natural user actions to improve sender reputation
- Unlimited Mailbox Warmup: Scale from 1 to hundreds of inboxes easily
- Spam & Blacklist Monitoring: Detects issues and alerts you promptly
- Real-Time Deliverability Reports: Shows inbox placement and spam rates
- Simple SMTP Integration: Works smoothly with most email providers
- Custom Warmup Scheduling: Flexible pacing to match your sending habits
Pros
- Easy to use with automated setup
- Supports unlimited inboxes for scaling
- Detaile analytics and spam monitoring
- Responsive customer support
Cons
- Limited advanced customization options
- No built-in DNS or domain management
- Some users report occasional delays in warmup emails
Who It’s Best For
- Freelancers or solopreneurs warming 1–3 inboxes
- Startups that need quick inbox trust without tech setup
- Cold emailers on a budget
TrulyInbox Pricing
TrulyInbox offers affordable warmup plans for every stage, with a 7-day free trial and savings on quarterly or annual billing.
- Free Plan: $0/month for 1 inbox, 10 emails/day
- Starter: $22/month for unlimited inboxes, 100 emails/day
- Growth: $59/month, higher email volume and features
- Scale: $142/month for large teams with advanced features
- Business: $217/month with premium support and max capacity
13. Instantly Warmup
Instantly comes with a built-in email warmup feature as part of its cold outreach platform.
The warmup runs in the background automatically once you connect your inbox, making it ideal for users already sending campaigns through Instantly.
There’s no need for separate setup or third-party tools; it’s designed for speed and scale, especially for teams managing dozens of inboxes.
Key Features
- AI-Driven Engagement: Automates replies, opens, and clicks for authentic interactions
- Custom Warmup Control: Adjust sending volume and reply rates to fit your needs
- Blacklist Monitoring: Real-time alerts for domain and IP reputation issues
- Inbox Placement Tracking: Detailed reports across Gmail, Outlook, Yahoo, and more
- SMTP Integration: Seamlessly connects with major email providers
- AI Content Assistant: Helps optimize email copy for better deliverability
Pros
- Intuitive interface for individuals and teams
- Fast setup for warm-up, domains, and campaigns
- AI handles replies, pauses, and follow-ups
- Real-time warm-up and lead verification improve deliverability
- AI co-pilot assists with writing and optimizing emails
- Clean reporting on engagement and performance
- Scales smoothly from solo users to large teams
Read the full user review
Cons
- Support can be slow during urgent issues
- Inbox disconnections may occur without alerts
- "Done-for-you" inboxes can deactivate unexpectedly
- Some users report billing bugs and glitches
- Platform updates may break existing workflows
- Analytics can feel incomplete or laggy
- Pricing increases quickly with more inboxes
Read the full user review
Who It’s Best For
- Teams already using Instantly for cold outreach
- Users who want hands-free warmup without switching platforms
- Agencies managing multiple inboxes from a central dashboard
Instantly Pricing
Instantly doesn’t just handle email warmup; it bundles prospecting, enrichment, and AI agents into each plan. You choose based on how many credits you need monthly.
- Solo: $42.30/month for basic warm-up credits
- Supersonic: $87.30/month for higher volume and features
- Hyper Credits: $177.30/month for very high volume senders
- Enterprise: Custom pricing for large-scale needs
If you’re already in the Instantly ecosystem, the warmup is built-in, invisible, and reliable, with no extra steps or extra cost.
Get 1 Free Warm-Up Slot for Google and Microsoft Inboxes Plus a Free Inbox Placement Test
Key Decision Table: Which Email Warmup Tool Should Be Used?
This table simplifies decision-making by matching each tool to specific cold email needs, from budget warmup to advanced infrastructure.
How to Choose the Right Warmup Tool (Quick Checklist)
Not every tool fits every use case. Use these quick questions to narrow down your best option:
Final Thoughts: Which Email Warmup Tool Is Worth It?
Email warm-up isn’t just a task; it’s the foundation for every successful cold outreach campaign. The right tool can save you hours, protect your sender reputation, and keep your emails landing where they belong.
Remember, warm-up tools vary in approach, from simple automation to full infrastructure support.
Choosing wisely means aligning with your sending volume, technical comfort, and long-term goals.
If you want something that works out of the box, with no technical setup, full automation, and real results, Warmforge is the one tool that checks every box.
👉 Try Warmforge today, and get 1 free warmup slot for Google and Microsoft inboxes.
FAQs:
- How long should I warm up a new inbox?
Most inboxes need 2–3 weeks of daily warm-up before starting cold outreach. Warm-up tools like Warmforge automate this by gradually increasing email volume and replies to build trust. - Do email warmup tools really work?
Yes, but only when they simulate real conversations, monitor inbox placement, and manage DNS records (SPF, DKIM, DMARC). These factors help avoid spam filters effectively. - Can I warm multiple inboxes at once?
Definitely. Tools such as Warmforge, Mailreach, and Mailivery support warming 10, 30, or even 100+ inboxes simultaneously, which is ideal for scaling campaigns. - What’s the difference between warmup and infrastructure setup?
Warm-up means slowly sending and receiving emails to build a reputation. Infrastructure setup covers SPF, DKIM, DMARC, IP warming, and domain tracking to protect your sender identity. - What’s the safest warmup tool for Gmail and Outlook?
Warmforge is highly recommended as it combines both warm-up and full technical setup to ensure reliable inbox placement. - What is the best email warmup tool?
If you want simple use, go for Warmup Inbox or Mailreach. For advanced automation and monitoring, Warmforge is the best choice. - How do you warm up a new email address?
Start by sending a small number of emails daily, gradually increasing volume while watching metrics like bounce rates and inbox placement. - Can I use a warmup tool for free?
Many tools provide free trials or limited free tiers so you can test effectiveness before committing. - What is Warmup Inbox?
A straightforward warm-up tool that automates gradual sending to improve your email deliverability over time. - What’s the difference between GMass, Mailshake, and warm-up platforms?
GMass and Mailshake focus on sending outreach emails, while warm-up platforms help improve your sender reputation and email deliverability.
How do I filter warmup emails from real replies?
Use email filters or labels in your inbox to separate automated warmup messages from genuine responses.