Growbots vs Mailreach: Cold Email Platform vs Email Warmup Tool Comparison
Compare Growbots (cold email platform) and Mailreach (email warmup tool) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Growbots is a cold email platform built for finding prospects and running outbound campaigns, while Mailreach is an email warmup tool focused on domain warming and deliverability. Growbots starts free, Mailreach starts at $25/mo. Teams focused on sending campaigns should pick Growbots; teams focused on inbox placement and sender reputation should pick Mailreach. Many teams use both.
Key takeaways
- Growbots offers a free entry plan while Mailreach's entry plan starts at $25/mo for one mailbox.
- Growbots lists access to a database of over 180 million prospects with email verification on import.
- Mailreach lists a smart AI warming algorithm with dozens of parameters and includes 20 or more spam test credits.
- Growbots has 3 pricing tiers compared to Mailreach's 2 tiers, giving Growbots more granularity as teams scale.
- Both platforms integrate with Gmail, Outlook, and SMTP, with Growbots also connecting to Salesforce, HubSpot, and Zapier while Mailreach connects to Google Workspace, Microsoft 365, Zoho, Mailgun, SendGrid, and Amazon SES.
Reviewed and updated September 2, 2026
Growbots vs Mailreach: Cold Email Platform vs Email Warmup Tool Comparison
Sales teams building an outbound stack often weigh Growbots, a cold email platform for cold email outreach, against Mailreach, an email warmup tool for email domain warming and deliverability. They cover different parts of the workflow, so this comparison covers what each one does, what each one costs, and where they overlap.
The Quick Answer
Growbots is a cold email platform for cold email outreach; Mailreach is an email warmup tool for email domain warming and deliverability. By each vendor's own wording, Growbots lists explore database of 180m+ prospects and email verification on import, and Mailreach lists smart ai warming algorithm with dozens of parameters and automated spam testing with 20+ credits included.
Growbots offers a lower entry point at $0/mo compared to Mailreach at $25/mo.
If your priority is sending campaigns that land in the inbox and generate replies, Growbots is the one built for it; for building sender reputation and improving inbox placement, that is Mailreach. Many teams run one of each.
Understanding the Core Difference
Growbots is Cold email software that finds prospects in a 180M+ contact database, warms up sending inboxes and automates outbound email campaigns. Also sells a Concierge service in which its own team runs the outbound process.
Mailreach is Email warmup and deliverability platform that uses a smart algorithm with dozens of parameters to generate positive engagement signals, paired with built-in spam testing and DNS monitoring.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Freemium
1 mailbox
Growbots Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Freemium | Free | Basic Filters; partial access to the 180M+ prospect database | 20 email accounts; 3 sequences; up to 20 per email daily |
| Starter Outreach | $29/mo | Credits (Per Propsect) From $0.13 | Unlimited email accounts; unlimited sequences; up to 100 per email daily |
| Pro Outreach | $39/mo | Credits (Per Propsect) From $0.13 | Unlimited email accounts; unlimited sequences; up to 500 per email daily |
Source: Growbots Pricing
Mailreach Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| 1 mailbox | $25/mo | 20 spam test credits included | Up to 100 emails per day per mailbox |
| 100+ mailboxes | Contact Sales | custom | Up to 100 emails per day per mailbox |
Source: Mailreach Pricing
Pricing Analysis
Growbots is more affordable at the entry level ($0/mo vs $25/mo). For teams with tight budgets or those just getting started with cold email outreach and email domain warming and deliverability, this price difference matters.
Growbots offers 3 pricing tiers compared to Mailreach's 2, giving you more granularity as you scale.
Growbots includes a free tier, letting you test the platform before committing financially.
Features Breakdown
- Explore Database of 180M+ Prospects
- Email Verification on Import
- Gradual Automatic Warmup
- Custom Tracking Domain
- Spintax Formulas
- A/B Testing
- and 4 more listed below
- Smart AI warming algorithm with dozens of parameters
- Automated spam testing with 20+ credits included
- MailReach Co-Pilot AI deliverability assistant
- Blacklist, SPF, DKIM, and DMARC monitoring
- Reputation tracking dashboard per inbox
- Human-like email engagement patterns
- and 2 more listed below
Growbots Key Features
- Explore Database of 180M+ Prospects
- Email Verification on Import
- Gradual Automatic Warmup
- Custom Tracking Domain
- Spintax Formulas
- A/B Testing
- Shared Inbox
- Out-Of-Office Rescheduling
- Warm Replies Detection
- Email Templates Generator
Mailreach Key Features
- Smart AI warming algorithm with dozens of parameters
- Automated spam testing with 20+ credits included
- MailReach Co-Pilot AI deliverability assistant
- Blacklist, SPF, DKIM, and DMARC monitoring
- Reputation tracking dashboard per inbox
- Human-like email engagement patterns
- Domain and inbox health scoring
- Gradual ramp-up of warmup volume
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 Growbots
- Explore Database of 180M+ Prospects
- Email Verification on Import
- Gradual Automatic Warmup
- Custom Tracking Domain
- Spintax Formulas
- A/B Testing
- Shared Inbox
- Out-Of-Office Rescheduling
- Warm Replies Detection
- Email Templates Generator
Listed only by Mailreach
- Smart AI warming algorithm with dozens of parameters
- Automated spam testing with 20+ credits included
- MailReach Co-Pilot AI deliverability assistant
- Blacklist, SPF, DKIM, and DMARC monitoring
- Reputation tracking dashboard per inbox
- Human-like email engagement patterns
- Domain and inbox health scoring
- Gradual ramp-up of warmup volume
Integration Ecosystem
Growbots Integrations
Growbots connects with: Salesforce, HubSpot, Zapier, Gmail, Outlook, SMTP, IMAP.
Mailreach Integrations
Mailreach connects with: Gmail, Google Workspace, Outlook, Microsoft 365, Zoho, SMTP, Mailgun, SendGrid, Amazon SES.
Shared Integrations
Both tools integrate with: Gmail, Outlook, SMTP.
Integrations listed only by Growbots: Salesforce, HubSpot, Zapier, IMAP.
Integrations listed only by Mailreach: Google Workspace, Microsoft 365, Zoho, Mailgun, SendGrid, Amazon SES.
Use Case Recommendations
Best Fit for Growbots
- 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
Best Fit for Mailreach
- Budget-conscious teams looking for an affordable email warmup tool
- Organizations with complex tech stacks needing broad integration support (9 integrations)
- Enterprise buyers who prefer custom pricing and dedicated support
Feature Comparison Summary
| Feature | Growbots | Mailreach |
|---|---|---|
| Starting Price | Free | $25/mo |
| Top Tier Price | $39/mo | Contact Sales |
| Total Features Listed | 10 | 8 |
| Integrations | 7 | 9 |
| Founded | 2014 | 2020 |
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
Growbots serves the cold email outreach side of an outbound stack and Mailreach the email domain warming and deliverability side. Growbots offers a more accessible entry point, while Mailreach starts at $25/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 Growbots and Mailreach for current information.
Frequently asked questions.
Frequently asked questions- What is the main difference between Growbots and Mailreach?
- Growbots is a cold email platform for finding prospects and running outbound email campaigns, while Mailreach is an email warmup tool focused on domain warming and deliverability. Growbots handles the sending and prospecting side of outbound, while Mailreach focuses on protecting sender reputation and inbox placement.
- Which is cheaper, Growbots or Mailreach?
- Growbots has a lower entry point at $0/mo with its Freemium plan, compared to Mailreach's entry plan at $25/mo for one mailbox. Growbots also offers 3 pricing tiers versus Mailreach's 2, giving more granularity as a team scales.
- Can I use Growbots and Mailreach together?
- Yes, the article notes that many teams run both tools together since they serve different parts of the outbound workflow. Growbots handles cold email campaigns and prospecting, while Mailreach handles email warmup and deliverability, so they complement rather than replace each other.
- Does Growbots have its own warmup feature, so do I even need Mailreach?
- Growbots lists a Gradual Automatic Warmup feature among its own capabilities, but Mailreach specializes further with a smart AI warming algorithm using dozens of parameters, automated spam testing with 20 or more included credits, and blacklist, SPF, DKIM, and DMARC monitoring. Teams prioritizing deliverability depth may still choose Mailreach.
- What integrations do Growbots and Mailreach support?
- Growbots integrates with Salesforce, HubSpot, Zapier, Gmail, Outlook, SMTP, and IMAP. Mailreach integrates with Gmail, Google Workspace, Outlook, Microsoft 365, Zoho, SMTP, Mailgun, SendGrid, and Amazon SES. Both tools share Gmail, Outlook, and SMTP as common integration points.
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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