Mailshake vs Warmforge: Cold Email Platform vs Email Warmup Tool Comparison
Compare Mailshake (cold email platform) and Warmforge (email warmup tool) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Mailshake is a cold email platform for outreach campaigns, starting at $29/mo, while Warmforge is an email warmup tool for deliverability and sender reputation, starting at $12/mo. Mailshake lists unlimited email warmup and unlimited campaigns, and Warmforge lists email warm up and monitoring and health checks. Many teams use both together rather than choosing one.
Key takeaways
- Mailshake's entry plan, Starter, costs $29/mo and includes 1,500 email sends per month with unlimited uploaded contacts.
- Warmforge's entry plan, Email Warm Up, costs $12/mo per slot and covers 1 mailbox with 1 free placement test per month.
- Mailshake offers 4 pricing tiers (Starter, Email Outreach, Sales Engagement, Agency Plan) compared to Warmforge's 3 tiers.
- Mailshake integrates with Salesforce, Pipedrive, HubSpot, and Zapier, while Warmforge integrates with Google Workspace, Microsoft 365, Gmail, Outlook, Salesforge, and Mailforge.
- Warmforge's Placement Tests Growth Plan costs $169/mo and covers 250 mailboxes per test with unlimited tests.
Reviewed and updated September 2, 2026
Mailshake vs Warmforge: Cold Email Platform vs Email Warmup Tool Comparison
Mailshake (cold email platform) and Warmforge (email warmup tool) 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
Mailshake is a cold email platform for cold email outreach; Warmforge is an email warmup tool for email domain warming and deliverability. By each vendor's own wording, Mailshake lists unlimited email warmup and unlimited campaigns, and Warmforge lists email warm up and monitoring & health checks.
Warmforge offers a lower entry point at $12/mo compared to Mailshake at $29/mo.
If your priority is sending campaigns that land in the inbox and generate replies, Mailshake is the one built for it; for building sender reputation and improving inbox placement, that is Warmforge. Many teams run one of each.
Understanding the Core Difference
Mailshake is Sales engagement platform with email outreach, VOIP dialer, and LinkedIn automation for sales teams.
Warmforge is Email warm up tool from the Forge Ecosystem that warms mailboxes with AI-written emails and tracks a per-mailbox Heat Score. Adds DNS, MX and blacklist health checks, placement tests and automatic removal of warm-up mail that lands in spam.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Starter
Email Warm Up (per slot)
Mailshake Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Starter | $29/mo | UNLIMITED uploaded contacts | 1,500 email sends per month |
| Email Outreach | $49/mo | UNLIMITED uploaded contacts | UNLIMITED email sends per month |
| Sales Engagement | $99/mo | UNLIMITED uploaded contacts | UNLIMITED email sends per month |
| Agency Plan | Contact Sales | UNLIMITED uploaded contacts | UNLIMITED email sends per month |
Source: Mailshake Pricing
Warmforge Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Email Warm Up (per slot) | $12/mo | 1 slot covers 1 mailbox; 1 free slot included | Automated AI email warm up; 1 free placement test per month |
| Placement Tests Pro Plan | $39/mo | 50 mailboxes per test | 100 tests per month |
| Placement Tests Growth Plan | $169/mo | 250 mailboxes per test | Unlimited tests |
Source: Warmforge Pricing
Pricing Analysis
Warmforge offers the lower entry point ($12/mo vs $29/mo). Teams watching their budget will appreciate the savings, especially when starting out.
Mailshake offers 4 pricing tiers compared to Warmforge's 3, giving you more granularity as you scale.
Features Breakdown
- Unlimited email warmup
- Unlimited campaigns
- Mail merge
- A/B testing
- AI email writing
- Email rotation
- and 4 more listed below
- Email Warm Up
- Monitoring & Health Checks
- Placement Tests
- Deliverability Boost
- Always-On Warm Up
- Heat Score per mailbox
- and 2 more listed below
Mailshake Key Features
- Unlimited email warmup
- Unlimited campaigns
- Mail merge
- A/B testing
- AI email writing
- Email rotation
- Unified inbox
- LinkedIn automation (Sales Engagement+)
- VOIP dialer (US/Canada unlimited)
- Lead Catcher
Warmforge Key Features
- Email Warm Up
- Monitoring & Health Checks
- Placement Tests
- Deliverability Boost
- Always-On Warm Up
- Heat Score per mailbox
- Health Checks on DNS and MX records and blacklist status
- Unique emails written by AI
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 Mailshake
- Unlimited email warmup
- Unlimited campaigns
- Mail merge
- A/B testing
- AI email writing
- Email rotation
- Unified inbox
- LinkedIn automation (Sales Engagement+)
- VOIP dialer (US/Canada unlimited)
- Lead Catcher
Listed only by Warmforge
- Email Warm Up
- Monitoring & Health Checks
- Placement Tests
- Deliverability Boost
- Always-On Warm Up
- Heat Score per mailbox
- Health Checks on DNS and MX records and blacklist status
- Unique emails written by AI
Integration Ecosystem
Mailshake Integrations
Mailshake connects with: Salesforce, Pipedrive, HubSpot, Zapier.
Warmforge Integrations
Warmforge connects with: Google Workspace, Microsoft 365, Gmail, Outlook, Salesforge (native), Mailforge (native).
Integrations listed only by Mailshake: Salesforce, Pipedrive, HubSpot, Zapier.
Integrations listed only by Warmforge: Google Workspace, Microsoft 365, Gmail, Outlook, Salesforge (native), Mailforge (native).
Use Case Recommendations
Best Fit for Mailshake
- Budget-conscious teams looking for an affordable cold email platform
- Teams that need a wide feature set (10 capabilities listed)
- Enterprise buyers who prefer custom pricing and dedicated support
Best Fit for Warmforge
- Budget-conscious teams looking for an affordable email warmup tool
- Organizations with complex tech stacks needing broad integration support (6 integrations)
- Teams launching new email domains for outreach
- Organizations recovering from deliverability issues
Feature Comparison Summary
| Feature | Mailshake | Warmforge |
|---|---|---|
| Starting Price | $29/mo | $12/mo |
| Top Tier Price | Contact Sales | $169/mo |
| Total Features Listed | 10 | 8 |
| Integrations | 4 | 6 |
| Founded | N/A | 2024 |
Getting Started Checklist
- Define your cold email outreach and email domain warming and deliverability requirements and monthly budget
- Estimate your expected email sending volume and warmup email 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
Mailshake serves the cold email outreach side of an outbound stack and Warmforge the email domain warming and deliverability side. Warmforge offers a more accessible entry point at $12/mo, while Mailshake starts at $29/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 Mailshake and Warmforge for current information.
Frequently asked questions.
Frequently asked questions- What is the main difference between Mailshake and Warmforge?
- Mailshake is a sales engagement platform built for cold email outreach, campaigns, and sales workflows, including a VOIP dialer and LinkedIn automation. Warmforge is an email warmup tool focused on warming mailboxes, tracking a per-mailbox Heat Score, and running deliverability checks like DNS, MX, and blacklist monitoring.
- Which tool is cheaper, Mailshake or Warmforge?
- Warmforge has the lower entry price at $12/mo per slot compared to Mailshake's Starter plan at $29/mo. However, pricing structures differ since Warmforge's entry plan covers one mailbox, while Mailshake's covers unlimited contacts with 1,500 email sends per month.
- Can I use Mailshake and Warmforge together?
- Yes, the article notes that many teams run one of each since the tools solve different problems. Mailshake handles sending cold email campaigns, while Warmforge handles warming up mailboxes and monitoring deliverability, so they complement rather than replace each other.
- What integrations does Warmforge support that Mailshake doesn't?
- Warmforge integrates with Google Workspace, Microsoft 365, Gmail, Outlook, Salesforge (native), and Mailforge (native), none of which appear on Mailshake's integration list. Mailshake instead lists Salesforce, Pipedrive, HubSpot, and Zapier as its integrations.
- Who should choose Warmforge over Mailshake?
- Warmforge fits budget-conscious teams looking for an affordable warmup tool, organizations with complex tech stacks needing broad integration support across 6 listed integrations, teams launching new email domains, and organizations recovering from deliverability issues.
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
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