Mailtrap

Mailtrap

Railsware
+
+

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About

Mailtrap is an email delivery platform for developers and product teams, providing a flexible RESTful API and SMTP service to send emails at scale. The platform is built with a focus on high inboxing rates, fast delivery, and 24/7 technical support from deliverability experts. Mailtrap ensures 99.99% uptime with dedicated IPs, auto warm-up, and sender reputation protection. Developers can integrate quickly using SDKs for major languages (Python, Ruby, PHP, etc.) and manage high-volume sending with a customizable API. The platform provides industry-best analytics with helicopter-view dashboards to monitor key metrics and 30-day logs for easy debugging. Trusted by over 150,000 monthly active users including Yelp, PayPal, Atlassian, and Adobe.

About

Mailwarm : Automated Email Warmup & Deliverability Software Mailwarm is a cloud-based email warmup and deliverability platform designed to help businesses improve inbox placement and reduce spam filtering risks. Since 2020, Mailwarm has supported startups, sales teams, recruiters, agencies, and outbound marketers that rely on cold email and domain reputation management for growth. The platform strengthens sender reputation by generating consistent, natural engagement signals across multiple mailbox providers. Instead of relying on shortcuts, Mailwarm builds long-term trust with email providers through structured warmup automation. Mailwarm supports Gmail, Outlook, Microsoft 365, Yahoo, and custom SMTP configurations, making it suitable for teams launching new domains, onboarding new sales representatives, or managing multiple client inboxes.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Digital products’ dev and marketing teams that send high-volume emails with a focus on high deliverability.

Audience

Users searching for a powerful Email Warmup Tool to avoid landing in spam

Support

Phone Support Not Supported
24/7 Live Support Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Supported
Online Supported

API

Offers API Supported

API

Offers API Not Supported

Screenshots and Videos

Screenshots and Videos

Pricing

$15/month
Mailtrap offers transparent and flexible plans to cover the needs of your business, separated into Email API/SMTP (includes Email Marketing) and Email Sandbox.

Email API/SMTP - send transactional & promo emails
- Free: 3,5K emails/mo
- Basic: from $15/mo and from 10,000 emails
- Business: from $85/month and from 100,000 emails
- Enterprise: from $750/month and from 1.5 million emails
- Custom: Tailored for high-volume senders with dedicated support.

Email Sandbox - test your emails
- Free: 50 test emails/mo
- Basic: $17/mo (or $14/mo, billed annually)
- Team: $42/mo (or $34/mo, billed annually)
- Business: $123/mo (or $99/mo, billed annually)
- Enterprise: $498/mo (or $399/mo, billed annually)
Free Version Supported
Free Trial Not Supported

Pricing

$69 per month
Unlimited emails/day
Unlimited accounts & SMTPs
Unlimited Users
Deliverability expert tailored engagement
Success Manager
Free Deliverability Audit
Free Version Not Supported
Free Trial Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

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Reviews/Ratings

Overall 5.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 5.0 / 5
support 5.0 / 5

Pros & Cons from Real Users

Pros

  • Over time, the platform helps improve email deliverability in a noticeable way, especially for users running cold email campaigns or outreach strategies consistently
  • Easy to use with a clean interface, saves time, and helps improve online visibility and engagement. It’s beginner-friendly and doesn’t require much technical knowledge to get started, which makes it very convenient.
  • It's reliable and runs automatically, so I don’t have to constantly check it. It also handles multiple accounts really well, even when you’re working at scale. The fact that it works across different email providers is a big plus for us. I also like having the spam score there to quickly see if everything is okay.
  • Mailwarm is an excellent email warm-up tool for improving email deliverability and sender reputation. The automated warm-up process gradually increases sending volume, helping emails land in the inbox instead of spam. It supports domain and IP warm-up, integrates easily with common email providers, and is ideal for cold email outreach, SaaS, and marketing campaigns. The dashboard is clear and the setup is fast, even for non-technical users.

Cons

  • The platform offers limited advanced customization options, which may not satisfy experienced users looking for more control over the warm-up process
  • Some advanced features are limited, and there is room for improvement in speed and overall performance during heavy use.
  • So far it’s been doing what we need, no complaints.
  • Advanced users may want more granular reporting on inbox placement and spam signals, but the core email warm-up functionality works very well. I told to the support they said that they will launch spam score feature in the coming weeks.

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Training

Documentation Supported
Webinars Supported
Live Online Supported
In Person Supported

Company Information

Railsware
Founded: 2007
United States
mailtrap.io

Company Information

Mailwarm
Founded: 2020
France
www.mailwarm.com

Alternatives

Debug Mail

Debug Mail

DebugMail.io

Alternatives

LiftInbox

LiftInbox

Unique Technologies
SendGrid

SendGrid

Twilio SendGrid

Categories

Email APIs Supported
Email Testing Supported

Categories

Email Warmup Supported

Email Deliverability Features

Deliverability Alerts Supported
Deliverability Reporting Supported
DMARC Analytics Supported
Email Address Verification Supported
Email Content Testing Supported
Email Previewing Supported
Inbox Placement Testing Supported
IP Blacklist Monitoring Supported
Reputation Reporting Supported

Email Testing Features

A/B Testing Not Supported
Accessibility Testing Supported
Deliverability Rates Supported
DMARC Analytics Supported
HTML Validation Supported
Improvement Recommendations Supported
IP Blacklist Checking Supported
Pre-Send Email Testing Supported
Preview Across Browsers & Devices Supported
Reporting / Analytics Supported
Sender Reputation Scoring Supported
Spam Testing Supported

Integrations

AOL Mail Not Supported
Claude Supported
Devin Desktop Supported
Google Workspace Not Supported
Heroku Supported
Java Supported
Laravel Supported
Mailgun Not Supported
Microsoft Outlook Not Supported
Node.js Supported
PHP Supported
Ruby Supported
Stripo.email Supported
Symfony Supported
Vercel Supported
Visual Studio Code Supported
Yahoo! Mail Not Supported
Zapier Supported
Zoho Mail Not Supported
v0 Supported

Integrations

AOL Mail Supported
Claude Not Supported
Devin Desktop Not Supported
Google Workspace Supported
Heroku Not Supported
Java Not Supported
Laravel Not Supported
Mailgun Supported
Microsoft Outlook Supported
Node.js Not Supported
PHP Not Supported
Ruby Not Supported
Stripo.email Not Supported
Symfony Not Supported
Vercel Not Supported
Visual Studio Code Not Supported
Yahoo! Mail Supported
Zapier Not Supported
Zoho Mail Supported
v0 Not Supported
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