MailWarm.io vs TrulyInbox: Email Warmup Tool Comparison

MailWarm.io vs TrulyInbox: Email Warmup Tool Comparison

Sales teams evaluating email domain warming and deliverability tools often narrow their shortlist to MailWarm.io and TrulyInbox. Both target the same job, but they cater to different workflows and budgets. This comparison covers pricing, features, and integrations so you can pick the right fit.

The Quick Answer

By each vendor's own wording, MailWarm.io lists p2p enabled and human review, while TrulyInbox lists unlimited email account connections on all paid plans and customizable reply rate per plan (10% to 65%). A capability both offer can appear under different names, so read both feature lists below.

TrulyInbox offers a lower entry point at $0/mo compared to MailWarm.io at $90/mo.

If your priority is building sender reputation and improving inbox placement, both tools target it. The right choice depends on your budget, team size, and the specific capabilities you need most.

Understanding the Core Difference

MailWarm.io is Email warmup tool for cold emails that exchanges warmup emails with real human inboxes, keeps replies in natural threads and connects mailboxes from 10+ email providers with auto-pilot scheduling. Not the same product as Mailwarm (mailwarm.com).

TrulyInbox is Cost-effective email warmup platform that supports unlimited inbox connections on paid plans, with customizable reply rates, ramp-up schedules, and real-time deliverability scoring.

The two platforms take different approaches to solving the same core challenge.

Pricing Comparison

$90/yrMailWarm.io entry plan

Basic

FreeTrulyInbox entry plan

Free

MailWarm.io Pricing (as of September 2026)

Source: MailWarm.io Pricing

TrulyInbox Pricing (as of September 2026)

Source: TrulyInbox Pricing

Pricing Analysis

TrulyInbox offers the lower entry point ($0/mo vs $90/mo). Teams watching their budget will appreciate the savings, especially when starting out.

TrulyInbox offers 5 pricing tiers compared to MailWarm.io's 2, giving you more granularity as you scale.

TrulyInbox includes a free tier, which is helpful for evaluating the platform without upfront cost.

Features Breakdown

MailWarm.io lists

• P2P enabled
• Human review
• Fully automated
• Premium support
• Auto-pilot mode Available.
• Auto Warmup Scheduling.
• and 2 more listed below

TrulyInbox lists

• Unlimited email account connections on all paid plans
• Customizable reply rate per plan (10% to 65%)
• Customizable email ramp-up schedules
• Human-like email interaction simulation
• Real-time deliverability score tracking
• Multiple email open simulation for natural engagement
• and 2 more listed below

MailWarm.io Key Features

• P2P enabled
• Human review
• Fully automated
• Premium support
• Auto-pilot mode Available.
• Auto Warmup Scheduling.
• Anti-Spam technology
• Real human inbox.

TrulyInbox Key Features

• Unlimited email account connections on all paid plans
• Customizable reply rate per plan (10% to 65%)
• Customizable email ramp-up schedules
• Human-like email interaction simulation
• Real-time deliverability score tracking
• Multiple email open simulation for natural engagement
• Advanced warmup settings on higher plans
• Free forever plan with 1 inbox

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 MailWarm.io

• P2P enabled
• Human review
• Fully automated
• Premium support
• Auto-pilot mode Available.
• Auto Warmup Scheduling.
• Anti-Spam technology
• Real human inbox.

Listed only by TrulyInbox

• Unlimited email account connections on all paid plans
• Customizable reply rate per plan (10% to 65%)
• Customizable email ramp-up schedules
• Human-like email interaction simulation
• Real-time deliverability score tracking
• Multiple email open simulation for natural engagement
• Advanced warmup settings on higher plans
• Free forever plan with 1 inbox

Integration Ecosystem

MailWarm.io Integrations

MailWarm.io connects with: Yahoo, Outlook, AOL, SMTP, Gmail, ProtonMail, Zoho Mail, Apple Mail, FastMail.

TrulyInbox Integrations

TrulyInbox connects with: Gmail, Google Workspace, Outlook, Microsoft 365, Zoho Mail, SMTP, Yahoo Mail.

Shared Integrations

Both tools integrate with: Outlook, SMTP, Gmail, Zoho Mail.

Integrations listed only by MailWarm.io: Yahoo, AOL, ProtonMail, Apple Mail, FastMail.

Integrations listed only by TrulyInbox: Google Workspace, Microsoft 365, Yahoo Mail.

Use Case Recommendations

Best Fit for MailWarm.io

• Organizations with complex tech stacks needing broad integration support (9 integrations)
• Teams launching new email domains for outreach
• Organizations recovering from deliverability issues
• Agencies managing warmup across multiple client domains

Best Fit for TrulyInbox

• Budget-conscious teams looking for an affordable email warmup tool
• Teams that want to start free and scale up as needs grow
• Teams launching new email domains for outreach
• Organizations recovering from deliverability issues

Feature Comparison Summary

Getting Started Checklist

1. Define your email domain warming and deliverability requirements and monthly budget
2. Estimate your expected warmup email volume to find the right tier
3. List the integrations your team currently relies on
4. Sign up for free trials or demos of both platforms
5. Run a small test with each tool before making a commitment
6. Evaluate the onboarding experience and support quality

Final Thoughts

MailWarm.io and TrulyInbox both serve the email domain warming and deliverability market. TrulyInbox offers a more accessible entry point, while MailWarm.io starts at $90/mo. 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 MailWarm.io and TrulyInbox for current information.