Warmy vs Yet Another Mail Merge: Email Warmup Tool vs Cold Email Platform Comparison
Compare Warmy (email warmup tool) and Yet Another Mail Merge (cold email platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Warmy and Yet Another Mail Merge solve different problems in the outbound stack: Warmy is an email warmup tool for domain warming and deliverability, while Yet Another Mail Merge is a cold email platform for sending and tracking mail merge campaigns from Gmail. Yet Another Mail Merge starts free; Warmy uses custom, contact-sales pricing. Many teams use both.
Key takeaways
- Yet Another Mail Merge publishes an entry price of $0 per month, while Warmy uses custom, contact-sales pricing across all three of its plans.
- Yet Another Mail Merge offers 4 pricing tiers, including a Free plan, a Pro gmail.com plan at $6 per month, a Pro Google Workspace plan at $12 per month, and a Team plan at $12 per month.
- Warmy lists 8 features including Email Warm-Up, Email Seed List, Deliverability Insights, Google Postmaster Integration, and a Dedicated deliverability expert.
- Yet Another Mail Merge lists 10 features including scheduling mail merges, launching follow-up campaigns, automatic over-quota splitting, and one-click surveys.
- Warmy integrates with Google Workspace, Microsoft 365, Gmail, Yahoo, Outlook, and Google Postmaster, while Yet Another Mail Merge integrates with Gmail, Google Workspace, Google Sheets, Google Contacts, and Google Forms.
Reviewed and updated September 5, 2026
Warmy vs Yet Another Mail Merge: Email Warmup Tool vs Cold Email Platform Comparison
Warmy (email warmup tool) and Yet Another Mail Merge (cold email platform) sit next to each other in many outbound stacks. They are not substitutes for each other on every job, so this comparison covers pricing, features, and integrations for each and points out where the two meet.
The Quick Answer
Warmy is an email warmup tool for email domain warming and deliverability; Yet Another Mail Merge is a cold email platform for cold email outreach. By each vendor's own wording, Warmy lists email warm-up and email seed list, and Yet Another Mail Merge lists schedule mail merges and launch follow-up campaigns.
Yet Another Mail Merge publishes an entry price of $0/mo; Warmy uses custom pricing, so the two cannot be compared on list price.
If your priority is building sender reputation and improving inbox placement, Warmy is the one built for it; for sending campaigns that land in the inbox and generate replies, that is Yet Another Mail Merge. Many teams run one of each.
Understanding the Core Difference
Warmy is Automated email deliverability tool that warms up domains and IPs with AI-driven automation and a network of business or consumer mailboxes. Adds Google Postmaster integration, seed lists, deliverability insights and email verification in the same platform.
Yet Another Mail Merge is Mail merge for Gmail that sends mass personalized email from a Google Sheet and tracks opens, clicks, responses, bounces and unsubscribes in real time from the sheet. Sending goes through the user's own Gmail or Google Workspace account, so daily volume is capped by that account.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
B2B sender
Free
Warmy Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| B2B sender | Contact Sales | Reach Businesses | Volume-based pricing |
| B2C sender | Contact Sales | Reach Consumers | Volume-based pricing |
| Custom plan | Contact Sales | Custom Solution | Volume-based pricing |
Source: Warmy Pricing
Yet Another Mail Merge Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Free | Free | 1 user | Up to 20 recipients / day |
| Pro gmail.com | $6/mo | 1 user | Up to 400 recipients / day |
| Pro Google Workspace | $12/mo | 1 user | Up to 1,500 recipients / day |
| Team | $12/mo | 5 Workspace accounts | Up to 1,500 recipients / day / user |
Source: Yet Another Mail Merge Pricing
Pricing Analysis
One or both platforms use custom or contact-based pricing for some tiers. Reach out to their sales teams for exact quotes based on your usage needs.
Yet Another Mail Merge offers 4 pricing tiers compared to Warmy's 3, giving you more granularity as you scale.
Yet Another Mail Merge includes a free tier, which is helpful for evaluating the platform without upfront cost.
Features Breakdown
- Email Warm-Up
- Email Seed List
- Deliverability Insights
- Google Postmaster Integration
- Email Verification
- Warmy API
- and 2 more listed below
- Schedule mail merges
- Launch follow-up campaigns
- Track opens and clicks
- Track email responses
- Send using an alias
- Add personalized attachments
- and 4 more listed below
Warmy Key Features
- Email Warm-Up
- Email Seed List
- Deliverability Insights
- Google Postmaster Integration
- Email Verification
- Warmy API
- Deliverability monitor
- Dedicated deliverability expert
Yet Another Mail Merge Key Features
- Schedule mail merges
- Launch follow-up campaigns
- Track opens and clicks
- Track email responses
- Send using an alias
- Add personalized attachments
- Automatic over-quota splitting
- Send Google Form email notifications
- Create one-click surveys
- Follow up in the same thread
The two lists below are a diff of each vendor's own feature list by exact wording, so a capability both tools offer can appear on either side under a different name.
Listed only by Warmy
- Email Warm-Up
- Email Seed List
- Deliverability Insights
- Google Postmaster Integration
- Email Verification
- Warmy API
- Deliverability monitor
- Dedicated deliverability expert
Listed only by Yet Another Mail Merge
- Schedule mail merges
- Launch follow-up campaigns
- Track opens and clicks
- Track email responses
- Send using an alias
- Add personalized attachments
- Automatic over-quota splitting
- Send Google Form email notifications
- Create one-click surveys
- Follow up in the same thread
Integration Ecosystem
Warmy Integrations
Warmy connects with: Google Workspace, Microsoft 365, Gmail, Yahoo, Outlook, Google Postmaster.
Yet Another Mail Merge Integrations
Yet Another Mail Merge connects with: Gmail, Google Workspace, Google Sheets, Google Contacts, Google Forms.
Shared Integrations
Both tools integrate with: Google Workspace, Gmail.
Integrations listed only by Warmy: Microsoft 365, Yahoo, Outlook, Google Postmaster.
Integrations listed only by Yet Another Mail Merge: Google Sheets, Google Contacts, Google Forms.
Use Case Recommendations
Best Fit for Warmy
- Organizations with complex tech stacks needing broad integration support (6 integrations)
- Enterprise buyers who prefer custom pricing and dedicated support
- Teams launching new email domains for outreach
- Organizations recovering from deliverability issues
Best Fit for Yet Another Mail Merge
- Budget-conscious teams looking for an affordable cold email platform
- Teams that need a wide feature set (10 capabilities listed)
- Teams that want to start free and scale up as needs grow
Feature Comparison Summary
| Feature | Warmy | Yet Another Mail Merge |
|---|---|---|
| Starting Price | Contact Sales | Free |
| Top Tier Price | Contact Sales | $12/mo |
| Total Features Listed | 8 | 10 |
| Integrations | 6 | 5 |
Getting Started Checklist
- Define your email domain warming and deliverability and cold email outreach requirements and monthly budget
- Estimate your expected warmup email volume and email sending volume to find the right tier
- List the integrations your team currently relies on
- Sign up for free trials or demos of both platforms
- Run a small test with each tool before making a commitment
- Evaluate the onboarding experience and support quality
Final Thoughts
Warmy serves the email domain warming and deliverability side of an outbound stack and Yet Another Mail Merge the cold email outreach side. Yet Another Mail Merge publishes an entry price (a free tier), while Warmy uses custom pricing for its plans, so compare on features and on the quote you receive. Your decision should weigh pricing against the specific features that matter most for your workflow.
Start with a trial of each to see which platform fits your team's daily process. The best tool is the one your team actually uses consistently.
Pricing and features verified as of September 2026. Visit Warmy and Yet Another Mail Merge for current information.
Frequently asked questions.
Frequently asked questions- What is the difference between Warmy and Yet Another Mail Merge?
- Warmy is an email warmup tool focused on domain warming, deliverability insights, and inbox placement, while Yet Another Mail Merge is a cold email platform that sends mass personalized emails from a Google Sheet and tracks opens, clicks, and responses. They address different stages of outbound email rather than competing directly.
- How much does Warmy cost compared to Yet Another Mail Merge?
- Warmy uses custom, contact-sales pricing across its B2B sender, B2C sender, and Custom plans, with volume-based pricing in each case. Yet Another Mail Merge publishes clear tiers starting with a Free plan, then $6 per month for Pro gmail.com, and $12 per month for both Pro Google Workspace and Team plans.
- Can I use Warmy and Yet Another Mail Merge together?
- Yes, the article notes that many teams run one of each since the tools serve different purposes. Warmy handles sender reputation and inbox placement, while Yet Another Mail Merge handles sending campaigns and tracking replies, and both share Gmail and Google Workspace integrations.
- Does Yet Another Mail Merge have a free plan?
- Yes, Yet Another Mail Merge offers a Free plan for 1 user allowing up to 20 recipients per day. This makes it possible to evaluate the platform without any upfront cost before moving to paid tiers like Pro gmail.com or Pro Google Workspace.
- What integrations does Warmy support that Yet Another Mail Merge does not?
- Warmy supports Microsoft 365, Yahoo, Outlook, and Google Postmaster, which are not listed among Yet Another Mail Merge's integrations. Both tools share Google Workspace and Gmail integrations, while Yet Another Mail Merge separately supports Google Sheets, Google Contacts, and Google Forms.
About the author.
Tim Carden is CMO / CTO at RevenueFlow, which builds and operates outbound revenue engines for B2B companies. Studied at McGill University.
Tim Carden · CMO / CTO
Connect on LinkedIn →Explore more.
Ready to scale your outreach?
We build GTM engines that book real meetings. See the receipts.
Related articles.
Growbots vs MailHeat: Cold Email Platform vs Email Warmup Tool Comparison
Compare Growbots (cold email platform) and MailHeat (email warmup tool) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
GetSales.io vs Yet Another Mail Merge: Sales Engagement Platform vs Cold Email Platform Comparison
Compare GetSales.io (sales engagement platform) and Yet Another Mail Merge (cold email platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Artisan vs Yet Another Mail Merge: Sales Engagement Platform vs Cold Email Platform Comparison
Compare Artisan (sales engagement platform) and Yet Another Mail Merge (cold email platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Enginy vs Success.ai: Sales Engagement Platform vs Cold Email Platform Comparison
Compare Enginy (sales engagement platform) and Success.ai (cold email platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Hexospark vs JustCall: Cold Email Platform vs Sales Engagement Platform Comparison
Compare Hexospark (cold email platform) and JustCall (sales engagement platform). See pricing, features, and integrations to decide which one, or both, your stack needs.
EmailBison vs Emelia: Cold Email Platform Comparison
Compare EmailBison and Emelia side by side. See pricing, features, and integrations to choose the right cold email platform for your needs.