Mailtrap vs. Postmastery Comparison


Mailtrap Railsware	Postmastery	+	+
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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 Postmastery provides a platform for professional email monitoring that goes far beyond the obvious ‘click & open’ statistics. Postmastery’s Delivery Analytics platform processes SMTP delivery data from both on-premises mail servers and SMTP providers. It reads data from Microsoft SNDS, Return Path Sender Score and relevant blacklists. Users have access to real time dashboards and receive automatic alerts. High bounce rates, increased delivery times, junk foldering or blacklisting are serious problems in email marketing and they impact your business. Since they affect your reputation , it's best to stay ahead of them. Postmastery offers a baseline for improvement and carries out an email delivery assessment. And, if needed, our specialists provide hands-on support at infrastructure level as well. Focus on your core business and outsource your delivery monitoring to Postmastery. Email delivery experience, expertise and tooling is at your disposal via our 'email delivery control centre'.
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 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 Companies seeking a mail delivery analytics and monitoring solution to improve email delivery assessment
Support Phone Support Not Supported 24/7 Live Support Supported Online Supported	Support Phone Support Supported 24/7 Live Support Not Supported Online Supported
API Offers API Supported	API Offers API Not Supported
Screenshots and Videos View more images or videos	Screenshots and Videos View more images or 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 No information available. Free Version Not Supported Free Trial Not 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: Review this Software	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: Review this Software

Training Documentation Supported Webinars Not Supported Live Online Supported In Person Not Supported	Training Documentation Supported Webinars Not Supported Live Online Not Supported In Person Supported
Company Information Railsware Founded: 2007 United States mailtrap.io	Company Information Postmastery Founded: 2012 Netherlands www.postmastery.com
Alternatives Debug Mail DebugMail.io	Alternatives SMTP.com Ziff Davis
MailHog	Inboxroad
MaxBulk Mailer Maxprog	turboSMTP
Maileroo	Maileroo
SendGrid Twilio SendGrid View All	Netcore Email API Netcore View All
Categories Email APIs Supported Email Deliverability Supported Email Testing Supported	Categories Email Deliverability Supported SMTP 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 Show More Features 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 AccessOwl Supported Claude Supported Cursor Supported Elixir Supported Java Supported KumoMTA Not Supported Lovable Supported MaxBulk Mailer Supported Microsoft 365 Not Supported Node.js Supported PHP Supported PowerMTA Not Supported Python Supported Stripo.email Supported Symfony Supported Tabular Supported Zapier Supported n8n Supported v0 Supported Show More Integrations View All 26 Integrations	Integrations AccessOwl Not Supported Claude Not Supported Cursor Not Supported Elixir Not Supported Java Not Supported KumoMTA Supported Lovable Not Supported MaxBulk Mailer Not Supported Microsoft 365 Supported Node.js Not Supported PHP Not Supported PowerMTA Supported Python Not Supported Stripo.email Not Supported Symfony Not Supported Tabular Not Supported Zapier Not Supported n8n Not Supported v0 Not Supported Show More Integrations View All 4 Integrations
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