Inboxy vs Mailshake: Email Warmup Tool vs Cold Email Platform Comparison
Compare Inboxy (email warmup tool) and Mailshake (cold email platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Inboxy is an email warmup tool priced at $47 per month that builds domain reputation and improves inbox placement, while Mailshake is a cold email platform starting at $29 per month for sending outreach campaigns. Inboxy handles deliverability before outreach, Mailshake handles the sending and sales engagement work, and many teams run both.
Key takeaways
- Inboxy's Pro plan costs $47 per month and supports Gmail and Office 365 inboxes with 120 daily emails per inbox.
- Mailshake's Starter plan costs $29 per month with unlimited uploaded contacts and 1,500 email sends per month.
- Mailshake offers four pricing tiers, Starter, Email Outreach, Sales Engagement, and Agency, compared to Inboxy's single Pro plan.
- Inboxy lists 9 features and integrates with 9 platforms including Gmail, Google Workspace, and Sendgrid.
- Mailshake lists 10 features and integrates with 4 platforms including Salesforce, HubSpot, and Zapier.
Reviewed and updated September 2, 2026
Inboxy vs Mailshake: Email Warmup Tool vs Cold Email Platform Comparison
Inboxy is an email warmup tool; Mailshake is a cold email platform. Whether you need one, the other, or both depends on which part of the workflow you are buying for: email domain warming and deliverability on one side, cold email outreach on the other. This guide lays out what each vendor publishes.
The Quick Answer
Inboxy is an email warmup tool for email domain warming and deliverability; Mailshake is a cold email platform for cold email outreach. By each vendor's own wording, Inboxy lists primary inbox supercharger and domain score iq monitoring, and Mailshake lists unlimited email warmup and unlimited campaigns.
Mailshake offers a lower entry point at $29/mo compared to Inboxy at $47/mo.
If your priority is building sender reputation and improving inbox placement, Inboxy is the one built for it; for sending campaigns that land in the inbox and generate replies, that is Mailshake. Many teams run one of each.
Understanding the Core Difference
Inboxy is Email warmup tool that improves deliverability by gradually increasing sending volume and boosting domain reputation. It runs warmup through a private network of headless browsers with AI-driven adjustments to sending metrics.
Mailshake is Sales engagement platform with email outreach, VOIP dialer, and LinkedIn automation for sales teams.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Inboxy Pro
Starter
Inboxy Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Inboxy Pro | $47/mo | Gmail and Office 365 Inboxes | 120 Daily Emails Per Inbox |
Source: Inboxy Pricing
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
Pricing Analysis
Mailshake offers the lower entry point ($29/mo vs $47/mo). Teams watching their budget will appreciate the savings, especially when starting out.
Mailshake offers 4 pricing tiers compared to Inboxy's 1, giving you more granularity as you scale.
Features Breakdown
- Primary Inbox Supercharger
- Domain Score IQ Monitoring
- AI Powered Inbox Adjustments
- Dynamic Email Scheduling
- Live Inbox Engagement Feed
- AI Generated Emails (GPT-3)
- and 3 more listed below
- Unlimited email warmup
- Unlimited campaigns
- Mail merge
- A/B testing
- AI email writing
- Email rotation
- and 4 more listed below
Inboxy Key Features
- Primary Inbox Supercharger
- Domain Score IQ Monitoring
- AI Powered Inbox Adjustments
- Dynamic Email Scheduling
- Live Inbox Engagement Feed
- AI Generated Emails (GPT-3)
- IP Warm Up Service
- SMTP Warm Up Service
- Inbox Placement Test
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
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 Inboxy
- Primary Inbox Supercharger
- Domain Score IQ Monitoring
- AI Powered Inbox Adjustments
- Dynamic Email Scheduling
- Live Inbox Engagement Feed
- AI Generated Emails (GPT-3)
- IP Warm Up Service
- SMTP Warm Up Service
- Inbox Placement Test
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
Integration Ecosystem
Inboxy Integrations
Inboxy connects with: Personal Gmail, Google Workspace, Outlook/Office (SMTP), Outlook/Office (Oauth), Mailgun, GoDaddy, Inboxroad, Sendgrid, Custom SMTP.
Mailshake Integrations
Mailshake connects with: Salesforce, Pipedrive, HubSpot, Zapier.
Integrations listed only by Inboxy: Personal Gmail, Google Workspace, Outlook/Office (SMTP), Outlook/Office (Oauth), Mailgun, GoDaddy, Inboxroad, Sendgrid, Custom SMTP.
Integrations listed only by Mailshake: Salesforce, Pipedrive, HubSpot, Zapier.
Use Case Recommendations
Best Fit for Inboxy
- Budget-conscious teams looking for an affordable email warmup tool
- Organizations with complex tech stacks needing broad integration support (9 integrations)
- Teams launching new email domains for outreach
- Organizations recovering from deliverability issues
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
Feature Comparison Summary
| Feature | Inboxy | Mailshake |
|---|---|---|
| Starting Price | $47/mo | $29/mo |
| Top Tier Price | $47/mo | Contact Sales |
| Total Features Listed | 9 | 10 |
| Integrations | 9 | 4 |
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
Inboxy serves the email domain warming and deliverability side of an outbound stack and Mailshake the cold email outreach side. Mailshake offers a more accessible entry point at $29/mo, while Inboxy starts at $47/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 Inboxy and Mailshake for current information.
Frequently asked questions.
Frequently asked questions- What is the difference between Inboxy and Mailshake?
- Inboxy is an email warmup tool built to improve deliverability and domain reputation, while Mailshake is a cold email platform built for sending outreach campaigns. Inboxy focuses on warming up sending infrastructure before outreach begins, while Mailshake handles the actual campaign sending, mail merge, and sales engagement features like a VOIP dialer.
- How much does Inboxy cost?
- Inboxy's Pro plan costs $47 per month, as of September 2026 pricing. It includes support for Gmail and Office 365 inboxes with 120 daily emails allowed per inbox, and it is currently Inboxy's only listed pricing tier.
- How much does Mailshake cost?
- Mailshake's Starter plan costs $29 per month with unlimited uploaded contacts and 1,500 email sends per month. Higher tiers include Email Outreach at $49 per month and Sales Engagement at $99 per month, both with unlimited email sends, plus an Agency plan with custom pricing.
- Can I use Inboxy and Mailshake together?
- Yes, many teams run both tools together since they serve different parts of the outreach workflow. Inboxy warms up sending domains and monitors deliverability, while Mailshake handles sending the actual cold email campaigns, so pairing them covers both reputation building and outreach execution.
- Which integrations does each tool support?
- Inboxy integrates with 9 platforms including Personal Gmail, Google Workspace, Outlook/Office, Mailgun, GoDaddy, Inboxroad, Sendgrid, and Custom SMTP. Mailshake integrates with 4 platforms: Salesforce, Pipedrive, HubSpot, and Zapier.
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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