The Warmforge 🔥 blog

Stay up to date with the latest Industry news, tips and resources

Tutorials & Guides

How to Configure SMTP for Email Campaigns

Step-by-step SMTP setup for email campaigns: choose a relay, verify a sending domain, configure SPF/DKIM/DMARC, warm up IPs, and monitor deliverability.
Tutorials & Guides

Cold Email Personalization Mistakes to Avoid

Avoid cold email personalization pitfalls—generic templates, incorrect data, intrusive details, ignored pain points, and deliverability issues that hurt inbox placement.
Tutorials & Guides

Ultimate Guide to Engagement Metrics for Email Success

Engagement metrics—not flashy tactics—decide if your emails reach inboxes or land in spam; track opens, CTR/CTOR, bounces, and clean lists to improve deliverability.
Tutorials & Guides

Common Gmail Warm-Up Mistakes to Avoid

Avoid Gmail warm-up errors that harm sender reputation: start slow, prioritize engagement, authenticate SPF/DKIM/DMARC, clean lists and keep consistent sending.
Tutorials & Guides

How AI Improves Cold Email Personalization

AI personalizes cold emails at scale - crafting tailored subject lines, behavior-based segments, automated A/B tests, and better deliverability.
Tutorials & Guides

Checklist for Improving Inbox Placement

Checklist to boost inbox placement: configure SPF/DKIM/DMARC, clean lists, warm up domains, write engaging emails, and monitor deliverability.
Tutorials & Guides

How to Monitor Email Bounce Rates Effectively

Track, analyze, and reduce email bounce rates with list cleaning, real-time dashboards, authentication, retry logic, and deliverability testing.
Tutorials & Guides

Spamhaus Blacklist Explained: Causes, Effects & How to Fix Your Email Reputation

Learn what the Spamhaus Blacklist (SBL) is, why IPs get listed, how it affects deliverability, and the exact steps to remove your domain — plus how Warmforge helps you stay off blacklists.
Reviews

Suomispam Reputation Check: What It Is & Why It Matters for Your Domain

Suomispam blacklist hurting your deliverability? Learn how Suomispam Reputation Check works, why domains get listed, and how Warmforge helps you fix and prevent blacklisting.
Carlos Ascanio
Customer Success Manager
Reviews

Warmbox Review: Does It Really Improve Email Deliverability?

Read our Warmbox Review to see if it really improves email deliverability. Discover its features, pros and cons, pricing, and why Warmforge is the best alternative for safer inbox placement.
AkvilÄ— MarÄŤiukaitytÄ—
Senior Customer Success Manager
Tutorials & Guides

How Automated Warm-Up Prevents Spam Issues

Learn how automated email warm-up builds sender reputation, prevents spam issues, and improves deliverability for better outreach success.
Tutorials & Guides

10 Best Outlook Warm-Up Tools 2025

Explore the top Outlook warm-up tools for 2025 that enhance email deliverability and build sender reputation through AI-driven techniques.
Tutorials & Guides

Spam Trigger Words vs. Safe Alternatives

Avoid spam filters by replacing trigger words with safe alternatives to improve email deliverability and engagement.
Tutorials & Guides

Top Tools for Monitoring Warm-Up Progress

Explore essential tools for monitoring email warm-up progress and improving deliverability to ensure your messages land in inboxes.
Tutorials & Guides

DKIM, SPF, DMARC: SMTP Authentication Basics

Learn how DKIM, SPF, and DMARC protocols enhance email security and improve deliverability, protecting your domain from spoofing and spam.
Tutorials & Guides

How DNS Records Impact Email Deliverability

Learn how DNS records like SPF, DKIM, and DMARC affect email deliverability and discover best practices to ensure your messages reach the inbox.
Tutorials & Guides

9 Best Email Deliverability Tools in 2025

Explore the top email deliverability tools of 2025 that enhance inbox placement and sender reputation with innovative features and pricing options.
Cold Email

Cold Email Metrics Trends 2025

Cold email performance has hit lows, but targeted strategies and AI tools can elevate engagement and deliverability in 2025.
Carlos Ascanio
Customer Success Manager
DNS Setup

SPF vs DKIM vs DMARC: Key Differences

Learn how SPF, DKIM, and DMARC work together to enhance email security and prevent phishing attacks in your communication strategy.
Vicky Antonenkova
Account Executive
Tools

Best Tools for Monitoring Warm-Up Metrics

Effective email warm-up is essential for inbox deliverability. Learn key metrics, top tools, and strategies to enhance your sender reputation.
Iga WĂłjtowicz
Content Lead
Cold Email

Cold Email Laws: GDPR, CAN-SPAM, CCPA

Understand the legal landscape of cold emailing with insights on GDPR, CAN-SPAM, and CCPA to ensure compliance and enhance email performance.
Tutorials & Guides

Email Authentication Checklist 2025

Ensure your emails reach the inbox by mastering essential authentication protocols like SPF, DKIM, and DMARC in 2025.
AkvilÄ— MarÄŤiukaitytÄ—
Senior Customer Success Manager
Tools

5 Best Mailwarm Alternatives & Competitors for Email Warmup

Looking for the best Mailwarm alternatives in 2025? Compare top tools like Warmforge, Mailreach, Warmy, Folderly, and Warmup Inbox.
Reviews

100+ TrulyInbox Reviews Compiled: Here’s What You Really Need to Know

We analyzed 100+ TrulyInbox reviews to reveal the real pros, cons, pricing, and ratings. Find out if it’s worth using in 2025.
Carlos Ascanio
Customer Success Manager
Tools

5 Best Email Warmup API Providers for Better Deliverability

Best Email Warmup API providers compared: Warmforge, Mailreach, Warmy.io, Mailgun, Mailivery. Improve deliverability and boost cold outreach.
AkvilÄ— MarÄŤiukaitytÄ—
Senior Customer Success Manager
Tutorials & Guides

Fixing DMARC Failures: Step-by-Step Guide

Learn how to fix DMARC failures to improve email deliverability and protect your sender reputation with this comprehensive step-by-step guide.
Tutorials & Guides

Checklist for Diagnosing SMTP Authentication Failures

Learn how to diagnose and fix SMTP authentication failures to ensure smooth email delivery and maintain your sender reputation.
Carlos Ascanio
Customer Success Manager
Email Deliverability

How MX Records Impact Email Deliverability

MX records are essential for email delivery; incorrect setup can harm reputation and lead to lost communications. Learn how to maintain them effectively.
Iga WĂłjtowicz
Content Lead
Tutorials & Guides

Common Email Authentication Errors: Explained

Learn about common email authentication errors like SPF, DKIM, and DMARC, and how to fix them to improve deliverability and sender reputation.
Vicky Antonenkova
Account Executive
DNS Setup

SPF Record Limits: Avoid DNS Lookup Failures

Understanding SPF record limits is crucial for email deliverability; exceeding the 10 DNS lookup limit can lead to authentication failures.
Manav Singh
Head of Growth
Email Deliverability

SMTP Errors: What They Mean for Email Deliverability

Learn how SMTP errors impact email deliverability and discover strategies to fix them, ensuring your emails reach the inbox effectively.
AkvilÄ— MarÄŤiukaitytÄ—
Senior Customer Success Manager
Email Warm Up

Gradual Scaling for New Domains: Warm-Up Tips

Learn how to warm up your email domain effectively to ensure high deliverability and maintain a positive sender reputation with ESPs.
Carlos Ascanio
Customer Success Manager
Tutorials & Guides

How to Audit DNS Records for Email Security

Audit your DNS records to enhance email security, prevent phishing attacks, and ensure reliable email deliverability.
Iga WĂłjtowicz
Content Lead
Email Deliverability

How Blacklisted IPs Impact Email Deliverability

Learn how blacklisted IPs affect email deliverability and discover strategies for prevention and recovery to ensure your messages reach their audience.
Manav Singh
Head of Growth
Email Infrastructure

Best Practices for Multi-ESP Management

Learn best practices for managing multiple Email Service Providers to enhance deliverability, streamline operations, and protect your sender reputation.
Vicky Antonenkova
Account Executive
Cold Email

SMTP Rate Limits: Impact on Cold Email Outreach

Explore how SMTP rate limits affect cold email outreach and discover effective strategies to improve deliverability and sender reputation.
Manav Singh
Head of Growth
Email Deliverability

How Email Headers Impact Deliverability

Understanding email headers is essential for improving deliverability and avoiding spam filters. Learn how to configure them correctly.
AkvilÄ— MarÄŤiukaitytÄ—
Senior Customer Success Manager
Email Deliverability

How to Check If Your Domain Is Blacklisted

Learn how to check if your domain is blacklisted, the reasons for blacklisting, and how to fix and prevent future issues.
Carlos Ascanio
Customer Success Manager
Tutorials & Guides

How to Test Email Placement Before Sending

Learn how to test email placement effectively to ensure your campaigns reach the primary inbox, boosting engagement and conversions.
Manav Singh
Head of Growth
Email Infrastructure

MX Records for Cold Email Campaigns

Learn how properly configured MX records can enhance your cold email campaigns by improving deliverability and protecting your sender reputation.
Vicky Antonenkova
Account Executive
DNS Setup

How MX Records Affect Email Deliverability

Understanding MX records is essential for ensuring reliable email delivery and maintaining your domain's reputation.
Carlos Ascanio
Customer Success Manager
Email Deliverability

How Blacklist Monitoring Improves Email Deliverability

Learn how blacklist monitoring protects your email reputation and ensures deliverability, preventing costly campaign disruptions.
Iga WĂłjtowicz
Content Lead
Email Deliverability

Ultimate Guide to AI Blacklist Monitoring

Learn how AI-powered blacklist monitoring tools can safeguard your email deliverability and enhance your sender reputation effectively.
Manav Singh
Head of Growth
Tools

Top 7 Email Spam Checker Tools 2025

Explore the top 7 email spam checker tools of 2025 to enhance your email deliverability and ensure your messages reach inboxes.
Vicky Antonenkova
Account Executive
DNS Setup

How to Set Up DMARC Policies

Learn how to effectively set up DMARC policies to enhance your email security and prevent phishing and spoofing attacks.
AkvilÄ— MarÄŤiukaitytÄ—
Senior Customer Success Manager
Tutorials & Guides

How to Calculate Email Campaign ROI

Learn how to effectively calculate and improve the ROI of your email campaigns by tracking costs and measuring revenue.
Vicky Antonenkova
Account Executive
Tools

We Analyzed 13 Email Warmup Tools Based On 100+ User Reviews

We analyzed 12+ email warmup tools in 2025 and grouped them by performance, infra-ready, mid-tier, and budget picks. Find the one that fits your sending style, stack, and scale.
Carlos Ascanio
Customer Success Manager
Tools

7 Best Folderly Alternatives & Competitors For Email Warmup

Looking for the best Folderly alternatives? We compared Warmforge, Mailreach, Instantly, Lemwarm, Warmup Inbox, InboxAlly, and Warmy.io to find the best email warm-up tool.
AkvilÄ— MarÄŤiukaitytÄ—
Senior Customer Success Manager
DNS Setup

DKIM Key Length: 1024 vs 2048

Explore the differences between 1024-bit and 2048-bit DKIM keys, highlighting security, performance, and implementation challenges for email authentication.
Manav Singh
Head of Growth
Tutorials & Guides

DMARC Setup Checklist for Phishing Defense

Protect your domain from phishing with DMARC by following this comprehensive setup checklist for email authentication and security.
Tools

5 Best Warmy.io Alternatives & Competitors for Automated Warmup

Exploring Warmy.io alternatives? We compared Warmforge, Mailreach, Warmup Inbox, InboxAlly, and Lemwarm to find the best tools for affordable, reliable email warm-up.
Carlos Ascanio
Customer Success Manager
Tools

7 Best Email Deliverability Monitoring Tools for Better Outreach

We reviewed dozens of tools and picked the 7 best email deliverability monitoring platforms to keep your cold emails out of spam in 2025.
Iga WĂłjtowicz
Content Lead
Tools

Top 7 Email Health Tools: Pros and Cons

Explore the pros and cons of seven essential email health tools to optimize deliverability and enhance inbox performance.
AkvilÄ— MarÄŤiukaitytÄ—
Senior Customer Success Manager
Tutorials & Guides

How to Fix SPF Record Failures

Learn how to diagnose and fix SPF record failures to improve your email deliverability and protect your sender reputation.
Tools

We Tested 5 Mailreach Alternatives & Competitors for Outreach

We tested 5 Mailreach alternatives in 2025. Compare features, pricing, pros & cons, and see which email deliverability tool is best for scaling your cold outreach.
Carlos Ascanio
Customer Success Manager
DNS Setup

SPF, DKIM, DMARC: Common Misconfigurations

Misconfigured email authentication protocols can harm deliverability and security. Learn common pitfalls and best practices for SPF, DKIM, and DMARC.
Manav Singh
Head of Growth
Tutorials & Guides

Ultimate Guide to CRM Email Deliverability

Learn essential strategies for improving CRM email deliverability and ensuring your messages consistently reach inboxes instead of spam folders.
AkvilÄ— MarÄŤiukaitytÄ—
Senior Customer Success Manager
Tutorials & Guides

Ultimate Guide to Blacklist Monitoring for Email Outreach

Learn how to monitor blacklists effectively to ensure your email outreach remains successful and reaches inboxes, not spam folders.
Iga WĂłjtowicz
Content Lead
Email Deliverability

Email Sending Limits: How They Affect Campaigns

Understand how email sending limits can impact your campaigns and discover strategies to maintain your sender reputation and improve deliverability.
Manav Singh
Head of Growth
Cold Email

How Spam Triggers Damage Cold Email Campaigns

Learn how to avoid spam triggers that jeopardize cold email campaigns and damage sender reputation for better deliverability.
Vicky Antonenkova
Account Executive
Email Deliverability

How to Warm Up Email Accounts for Better Inbox Placement Rates

Learn effective strategies for how to warm up email accounts to boost deliverability and ensure your messages land in inboxes consistently.
Iga WĂłjtowicz
Content Lead
Email Deliverability

How DKIM Validators Improve Email Deliverability

Learn how DKIM validators enhance email security and deliverability, safeguarding your sender reputation and ensuring your messages reach inboxes.
Manav Singh
Head of Growth
Cold Email

Best Practices for CRM Segmentation in Cold Outreach

Learn how CRM segmentation can enhance cold outreach by improving targeting, engagement, and deliverability for better email campaign results.
AkvilÄ— MarÄŤiukaitytÄ—
Senior Customer Success Manager
Tutorials & Guides

Ultimate Guide to Cold Email Open Rates 2025

Explore the evolving landscape of cold email open rates in 2025, including strategies to enhance engagement and adapt to new privacy challenges.
Carlos Ascanio
Customer Success Manager
Cold Email

Top CRMs for Cold Emails in 2025

Explore the top CRMs for cold emailing in 2025, focusing on automation and deliverability to boost your B2B outreach success.
Vicky Antonenkova
Account Executive
Tutorials & Guides

How To Set Up BIMI for Your Domain

Learn how to set up BIMI for your domain, enhancing email visibility and trust with your brand logo in inboxes.
Email Deliverability

Understanding Sender Score Metrics in 2025

Learn how to maintain a strong sender score in 2025 to ensure your emails reach inboxes and boost engagement and revenue.
Manav Singh
Head of Growth
Tutorials & Guides

SPF Record Setup: 5 Steps for Beginners

Learn how to set up an SPF record in five simple steps to enhance email deliverability and protect your domain from spoofing.
Iga WĂłjtowicz
Content Lead
DNS Setup

Troubleshooting DKIM Validation Failures

Learn how to troubleshoot DKIM validation failures to enhance email deliverability and protect your sender reputation.
Carlos Ascanio
Customer Success Manager
Cold Email

Best Time to Send Cold Emails in 2025

Unlock the secrets to boosting your cold email success in 2025 with optimal timing and improved deliverability strategies.
AkvilÄ— MarÄŤiukaitytÄ—
Senior Customer Success Manager
Email Warm Up

New vs Aged Domains: Warm-Up Differences

Explore the essential differences in warming up new and aged domains to enhance email deliverability and optimize outreach strategies.
AkvilÄ— MarÄŤiukaitytÄ—
Senior Customer Success Manager
Tutorials & Guides

Troubleshooting Outlook Warm-Up: A Step-by-Step Guide

Learn how to effectively warm up your Outlook email account to improve deliverability and avoid spam filters through gradual volume increases and engagement.
Carlos Ascanio
Customer Success Manager
Email Deliverability

How Gradual Scaling Improves Sender Score

Gradual scaling of email volume is crucial for improving sender scores and ensuring high deliverability, safeguarding your email marketing efforts.
Manav Singh
Head of Growth
DNS Setup

How to Verify SPF, DKIM, and DMARC Records

Learn how to verify SPF, DKIM, and DMARC records to protect your domain and enhance email deliverability.
Vicky Antonenkova
Account Executive
Cold Email

GDPR Compliance for Email Tracking Tools

Understand GDPR compliance for email tracking tools, focusing on consent, transparency, and data subject rights to ensure regulatory adherence.
Carlos Ascanio
Customer Success Manager
Email Deliverability

How Unsubscribe Rate Impacts Deliverability

High unsubscribe rates can harm your email deliverability and sender reputation. Learn how to keep your lists healthy and emails relevant.
Vicky Antonenkova
Account Executive
Tools

5 Best Lemwarm Alternatives & Competitors for Better Deliverability (2025)

Looking for the best Lemwarm alternatives in 2025? We evaluated Top 5 tools - Warmforge, Mailreach, Folderly, Warmup Inbox, and Warmy.io for better deliverabil
Carlos Ascanio
Customer Success Manager
Email Deliverability

Email Deliverability in Salesforce: Is It Good or Bad

Email deliverability in Salesforce: Is it good or bad? This 2025 analysis breaks down how it works, common problems, and what new users can do to improve results.
AkvilÄ— MarÄŤiukaitytÄ—
Senior Customer Success Manager
Reviews

100+ Warmup Inbox Reviews Demystified: Here's What You Need To Know

I read over 100 Warmup Inbox reviews to understand what it does well, where it falls short, and whether it’s worth using. Here’s what I found.
DNS Setup

Common DKIM Setup Errors and Fixes

Learn how to troubleshoot common DKIM setup errors to improve email deliverability and protect your domain from spoofing.
Iga WĂłjtowicz
Content Lead
Email Deliverability

How Spam Keywords Trigger Filters in Emails

Learn how to avoid spam filters by understanding problematic keywords, formatting issues, and improving sender reputation for better email deliverability.
Vicky Antonenkova
Account Executive
Tutorials & Guides

Amazon SES Dashboard Setup for Deliverability Metrics

Learn how to set up an Amazon SES dashboard to monitor email deliverability metrics and improve sender reputation effectively.
Manav Singh
Head of Growth
Tools

Top 10 Email Analytics Tools for Spam Tracking

Explore top email analytics tools to enhance deliverability and avoid spam filters, ensuring your marketing emails reach their intended audience.
Vicky Antonenkova
Account Executive
Email Warm Up

Email Warm-Up Compliance: 2025 Trends

In 2025, email warm-up compliance is essential to avoid hefty fines and improve deliverability. Learn the latest regulations and best practices.
AkvilÄ— MarÄŤiukaitytÄ—
Senior Customer Success Manager
Email Deliverability

5 Engagement Metrics That Improve Inbox Placement

Learn how engagement metrics like open rates and replies influence email inbox placement and improve deliverability for your campaigns.
Carlos Ascanio
Customer Success Manager
Email Deliverability

STOP Landing in SPAM - Cold Email Deliverability Guide 2025

Discover expert strategies to improve your cold email deliverability in 2025. Learn domain setup, copywriting tips, mailbox management, and more to land in the inbox, not spam.
AkvilÄ— MarÄŤiukaitytÄ—
Senior Customer Success Manager
Cold Email

How Spam Complaints Hurt Sender Reputation

Spam complaints can severely impact your email campaigns, damaging your sender reputation and costing your business. Learn how to protect it.
Manav Singh
Head of Growth
Tutorials & Guides

Avoiding Spam Filters in High-Volume Warm-Ups

Learn essential strategies to avoid spam filters during high-volume email warm-ups, ensuring better deliverability and engagement.
Vicky Antonenkova
Account Executive
Email Infrastructure

How AI Detects and Removes Email Blacklist Issues

Learn how AI tools can detect and resolve email blacklist issues, enhancing deliverability and protecting sender reputation.
AkvilÄ— MarÄŤiukaitytÄ—
Senior Customer Success Manager
Email Deliverability

How Email Sender Reputation is Damaged & How to Improve It

Learn how to protect and improve your email sender reputation to ensure your emails land in inboxes and boost engagement.
Carlos Ascanio
Customer Success Manager
DNS Setup

Sender Policy Framework (SPF): What It Does

SPF is crucial for protecting your domain from email spoofing, improving deliverability, and ensuring trusted communication with recipients.
Iga WĂłjtowicz
Content Lead
DNS Setup

SPF, DKIM, DMARC: Security in Email Integrations

Explore how SPF, DKIM, and DMARC protocols enhance email security, protect your brand, and improve deliverability in today’s digital landscape.
Manav Singh
Head of Growth
Email Deliverability

Email Deliverability Metrics: What to Track

Learn essential email deliverability metrics to track and improve your email campaign performance and engagement with your audience.
Vicky Antonenkova
Account Executive
DNS Setup

Reverse DNS Failures: Causes and Fixes

Learn how to troubleshoot and fix reverse DNS failures to improve your email deliverability and sender reputation.
AkvilÄ— MarÄŤiukaitytÄ—
Senior Customer Success Manager
Cold Email

10 Examples of Personalized Cold Emails That Work

Explore effective strategies for crafting personalized cold emails that enhance engagement and boost response rates.
Iga WĂłjtowicz
Content Lead
Email Deliverability

Spam Complaint Rate: What It Is and How to Track It

Learn how to track and reduce your spam complaint rate to improve email deliverability and protect your sender reputation.
Carlos Ascanio
Customer Success Manager
Tools

5 Warmup Inbox Alternatives & Competitors for Account Warmups ( Real User Insights)

Warmup Inbox not cutting it? We analyzed 100+ user reviews to uncover 5 better tools with stronger deliverability, automation, and scale.
Manav Singh
Head of Growth
Tutorials & Guides

Ultimate Guide to Email Tracking and Automation Integration

Learn how email tracking and automation can enhance your outreach strategy, improve engagement, and drive higher sales productivity.
Vicky Antonenkova
Account Executive
Reviews

In-depth Warmy.io Review: 200+ Users' Experience Breakdown

Wondering if Warmy.io is worth it? This in-depth review analyzes 200+ real user experiences, key features, pricing, and why many switch to Warmforge for serious cold outreach
AkvilÄ— MarÄŤiukaitytÄ—
Senior Customer Success Manager
Tools

5 TrulyInbox Alternatives & Competitors for 30 Email Accounts (Based on Real User Feedback)

Looking for the best TrulyInbox alternatives in 2025? Real users recommend Warmforge, Mailscale, Maildoso, Mission Inbox, and Inframail for scaling past 30 inboxes with ease. Find out which one delivers the best results.
Manav Singh
Head of Growth