Boost Inbox vs MailToaster: Email Warmup Tool Comparison
Compare Boost Inbox and MailToaster side by side. See pricing, features, and integrations to choose the right email warmup tool for your needs.
Boost Inbox and MailToaster are both email warmup tools, but Boost Inbox is the cheaper option starting at $5/mo with three pricing tiers and six integrations, while MailToaster starts at $29/mo with one plan and uses a peer-to-peer network of real inboxes to build, maintain, or repair sender reputation.
Key takeaways
- Boost Inbox's entry plan costs $5/mo compared to MailToaster's entry plan at $29/mo.
- Boost Inbox offers three pricing tiers (Starter, Team, Premium) while MailToaster offers one published plan (Email Warm-up).
- Boost Inbox integrates with six platforms: Gmail, GSuite, Outlook 365, Yahoo Mail, Amazon SES, and SMTP.
- MailToaster integrates with three platforms: Gmail, GSuite, and Outlook.
- Boost Inbox and MailToaster share Gmail and GSuite as common integrations.
Reviewed and updated September 2, 2026
Boost Inbox vs MailToaster: Email Warmup Tool Comparison
Boost Inbox and MailToaster compete head-to-head in the email domain warming and deliverability space. This guide compares their pricing tiers, feature sets, and integration ecosystems to help you make a confident decision.
The Quick Answer
By each vendor's own wording, Boost Inbox lists email warmup and fully automated, while MailToaster lists 100% automated email warm-up process and trusted network of real inboxes for extra security. A capability both offer can appear under different names, so read both feature lists below.
Boost Inbox offers a lower entry point at $5/mo compared to MailToaster at $29/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
Boost Inbox is Email warmup service that gradually increases sending activity to build trust with email providers. It sends realistic emails from your inbox on a daily basis, keeps them out of spam, opens and bookmarks them, and replies to a portion of them to generate positive interactions.
MailToaster is Automated email warm-up service that builds, maintains and repairs sender reputation using peer-to-peer sending across a network of real inboxes. Warm-up profiles let you choose whether to build, maintain or repair reputation, and the system opens, replies to and removes messages from spam on your behalf.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Starter
Email Warm-up
Boost Inbox Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Starter | $5/mo | 1 Mailbox For Warmup | 50 Daily Positive Engagement |
| Team | $9/mo | 3 Mailboxes For Warmup | 50 Daily Positive Engagement per mailbox |
| Premium | $19/mo | 8 Mailboxes For Warmup | 50 Daily Positive Engagement per mailbox |
Source: Boost Inbox Pricing
MailToaster Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Email Warm-up | $29/mo | Email account / month | Not published; volume is managed by the warm-up profile |
Source: MailToaster Pricing
Pricing Analysis
Boost Inbox is more affordable at the entry level ($5/mo vs $29/mo). For teams with tight budgets or those just getting started with email domain warming and deliverability, this price difference matters.
Boost Inbox offers 3 pricing tiers compared to MailToaster's 1, giving you more granularity as you scale.
Features Breakdown
- Email Warmup
- Fully Automated
- Status Reports
- Human Review
- Premium Support
- Realistic emails sent from your inbox daily
- and 2 more listed below
- 100% automated email warm-up process
- Trusted network of real inboxes for extra security
- Positive engagement with your emails
- Available for GSuite and Outlook
- Multiple warm-up profiles to meet your current needs
- Filtering for warm-up emails in your Inbox
- and 2 more listed below
Boost Inbox Key Features
- Email Warmup
- Fully Automated
- Status Reports
- Human Review
- Premium Support
- Realistic emails sent from your inbox daily
- Email health checker tool
- Inbox reputation analytics
MailToaster Key Features
- 100% automated email warm-up process
- Trusted network of real inboxes for extra security
- Positive engagement with your emails
- Available for GSuite and Outlook
- Multiple warm-up profiles to meet your current needs
- Filtering for warm-up emails in your Inbox
- Auto-generated texts and templates for warm-up emails
- Detailed reports for progress tracking
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 Boost Inbox
- Email Warmup
- Fully Automated
- Status Reports
- Human Review
- Premium Support
- Realistic emails sent from your inbox daily
- Email health checker tool
- Inbox reputation analytics
Listed only by MailToaster
- 100% automated email warm-up process
- Trusted network of real inboxes for extra security
- Positive engagement with your emails
- Available for GSuite and Outlook
- Multiple warm-up profiles to meet your current needs
- Filtering for warm-up emails in your Inbox
- Auto-generated texts and templates for warm-up emails
- Detailed reports for progress tracking
Integration Ecosystem
Boost Inbox Integrations
Boost Inbox connects with: Gmail, GSuite, Outlook 365, Yahoo Mail, Amazon SES, SMTP.
MailToaster Integrations
MailToaster connects with: Gmail, GSuite, Outlook.
Shared Integrations
Both tools integrate with: Gmail, GSuite.
Integrations listed only by Boost Inbox: Outlook 365, Yahoo Mail, Amazon SES, SMTP.
Integrations listed only by MailToaster: Outlook.
Use Case Recommendations
Best Fit for Boost Inbox
- 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
Best Fit for MailToaster
- Budget-conscious teams looking for an affordable email warmup tool
- Teams launching new email domains for outreach
- Organizations recovering from deliverability issues
- Agencies managing warmup across multiple client domains
Feature Comparison Summary
| Feature | Boost Inbox | MailToaster |
|---|---|---|
| Starting Price | $5/mo | $29/mo |
| Top Tier Price | $19/mo | $29/mo |
| Total Features Listed | 8 | 8 |
| Integrations | 6 | 3 |
Getting Started Checklist
- Define your email domain warming and deliverability requirements and monthly budget
- Estimate your expected 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
Boost Inbox and MailToaster both serve the email domain warming and deliverability market. Boost Inbox offers a more accessible entry point at $5/mo, while MailToaster 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 Boost Inbox and MailToaster for current information.
Frequently asked questions.
Frequently asked questions- What is the price difference between Boost Inbox and MailToaster?
- Boost Inbox starts at $5/mo for its Starter plan, while MailToaster starts at $29/mo for its Email Warm-up plan. Boost Inbox also offers additional tiers at $9/mo and $19/mo, giving more pricing granularity than MailToaster's single published plan.
- How many pricing plans does each tool offer?
- Boost Inbox offers three pricing tiers: Starter, Team, and Premium, priced at $5/mo, $9/mo, and $19/mo respectively. MailToaster publishes only one plan, called Email Warm-up, priced at $29/mo per email account.
- Which integrations does Boost Inbox support that MailToaster does not?
- Boost Inbox supports Outlook 365, Yahoo Mail, Amazon SES, and SMTP, none of which are listed by MailToaster. Both tools do share Gmail and GSuite as common integrations, but Boost Inbox lists six total integrations compared to MailToaster's three.
- How does MailToaster's warm-up approach differ from Boost Inbox?
- MailToaster uses peer-to-peer sending across a network of real inboxes and offers warm-up profiles that let users choose to build, maintain, or repair sender reputation. Boost Inbox instead sends realistic emails from the user's own inbox daily and includes a human review step along with status reports.
- Which tool is better for teams recovering from deliverability issues?
- According to the article's use case recommendations, Boost Inbox is listed as a good fit for organizations recovering from deliverability issues. It is also recommended for budget-conscious teams and those needing broad integration support across a complex tech stack.
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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