MailToaster vs Success.ai: Email Warmup Tool vs Cold Email Platform Comparison
Compare MailToaster (email warmup tool) and Success.ai (cold email platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Compare MailToaster (email warmup tool) and Success.ai (cold email platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
Reviewed and updated September 2, 2026
MailToaster vs Success.ai: Email Warmup Tool vs Cold Email Platform Comparison
Sales teams building an outbound stack often weigh MailToaster, an email warmup tool for email domain warming and deliverability, against Success.ai, a cold email platform for cold email outreach. 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
MailToaster is an email warmup tool for email domain warming and deliverability; Success.ai is a cold email platform for cold email outreach. By each vendor's own wording, MailToaster lists 100% automated email warm-up process and trusted network of real inboxes for extra security, and Success.ai lists ai sales & reply operators and 700m+ database with unlimited look-ups.
MailToaster offers a lower entry point at $29/mo compared to Success.ai at $49/mo.
If your priority is building sender reputation and improving inbox placement, MailToaster is the one built for it; for sending campaigns that land in the inbox and generate replies, that is Success.ai. Many teams run one of each.
Understanding the Core Difference
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.
Success.ai is Cold email outreach platform with unlimited email sending accounts, unlimited warmup, a unified inbox and a 700M+ contact B2B database. AI operators write campaigns and draft replies, and a token balance meters data reveals, enrichment and AI actions.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Email Warm-up
Lite
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
Success.ai Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Lite | $49/mo | 2,000 tokens /mo for reveals, enrichment & AI; 700M+ database with unlimited look-ups | 5K emails /mo with warm-up on 10 accounts |
| Starter | $99/mo | 6,000 tokens /mo for reveals, enrichment & AI; 700M+ database with unlimited look-ups | 50K emails /mo with unlimited warm-up |
| Pro | $199/mo | 10,000 tokens /mo + advanced search filters | 150K emails /mo + advanced deliverability |
| Enterprise | Contact Sales | Custom tokens & unlimited email sending | Custom tokens & unlimited email sending |
Source: Success.ai Pricing
Pricing Analysis
MailToaster is more affordable at the entry level ($29/mo vs $49/mo). For teams with tight budgets or those just getting started with email domain warming and deliverability and cold email outreach, this price difference matters.
Success.ai offers 4 pricing tiers compared to MailToaster's 1, giving you more granularity as you scale.
Features Breakdown
- 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
- AI Sales & Reply Operators
- 700M+ database with unlimited look-ups
- Unified InboxHub
- Data enrichment & email verification built in
- unlimited warm-up
- advanced search filters
- and 3 more listed below
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
Success.ai Key Features
- AI Sales & Reply Operators
- 700M+ database with unlimited look-ups
- Unified InboxHub
- Data enrichment & email verification built in
- unlimited warm-up
- advanced search filters
- advanced deliverability
- Website Visitor identification
- 5 deal pipelines
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 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
Listed only by Success.ai
- AI Sales & Reply Operators
- 700M+ database with unlimited look-ups
- Unified InboxHub
- Data enrichment & email verification built in
- unlimited warm-up
- advanced search filters
- advanced deliverability
- Website Visitor identification
- 5 deal pipelines
Integration Ecosystem
MailToaster Integrations
MailToaster connects with: Gmail, GSuite, Outlook.
Success.ai Integrations
Success.ai connects with: Zapier, HubSpot, Salesforce, Pipedrive, Slack.
Integrations listed only by MailToaster: Gmail, GSuite, Outlook.
Integrations listed only by Success.ai: Zapier, HubSpot, Salesforce, Pipedrive, Slack.
Use Case Recommendations
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
Best Fit for Success.ai
- Budget-conscious teams looking for an affordable cold email platform
- Teams that need a wide feature set (9 capabilities listed)
- Organizations with complex tech stacks needing broad integration support (5 integrations)
- Enterprise buyers who prefer custom pricing and dedicated support
Feature Comparison Summary
| Feature | MailToaster | Success.ai |
|---|---|---|
| Starting Price | $29/mo | $49/mo |
| Top Tier Price | $29/mo | Contact Sales |
| Total Features Listed | 8 | 9 |
| Integrations | 3 | 5 |
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
MailToaster serves the email domain warming and deliverability side of an outbound stack and Success.ai the cold email outreach side. MailToaster offers a more accessible entry point at $29/mo, while Success.ai starts at $49/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 MailToaster and Success.ai for current information.
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
Connect on LinkedIn →Explore more.
Ready to scale your outreach?
We build GTM engines that book real meetings. See the receipts.
Related articles.
Success.ai vs Yesware: Cold Email Platform Comparison
Compare Success.ai and Yesware side by side. See pricing, features, and integrations to choose the right cold email platform for your needs.
Mailmeteor vs Reply.io: Cold Email Platform Comparison
Compare Mailmeteor and Reply.io side by side. See pricing, features, and integrations to choose the right cold email platform for your needs.
Emelia vs Manyreach: Cold Email Platform Comparison
Compare Emelia and Manyreach side by side. See pricing, features, and integrations to choose the right cold email platform for your needs.
Emelia vs Salesforge: Cold Email Platform vs Sales Engagement Platform Comparison
Compare Emelia (cold email platform) and Salesforge (sales engagement platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
GMass vs PlusVibe: Cold Email Platform Comparison
Compare GMass and PlusVibe side by side. See pricing, features, and integrations to choose the right cold email platform for your needs.
Mailarrow vs SalesBlink: Cold Email Platform Comparison
Compare Mailarrow and SalesBlink side by side. See pricing, features, and integrations to choose the right cold email platform for your needs.