ImprovMX vs Postmark: Features, Pricing and User Reviews 2026
Compare features, pricing, reviews, and more to make an informed decision
ImprovMX
ImprovMX is a simple email forwarding service that lets you send and receive emails using your custom domain without hosting.
Postmark
Postmark is a fast and reliable email delivery service that helps businesses send transactional emails through SMTP and API integration.
ImprovMX
ImprovMX is a simple email forwarding service that lets you send and receive emails using your custom domain without hosting.
Postmark
Postmark is a fast and reliable email delivery service that helps businesses send transactional emails through SMTP and API integration.
ImprovMX
Custom domain email forwarding to existing inbox
SMTP sending for professional outbound emails
Catch-all addresses and regex routing rules
Fast 5-second average forwarding time
99.99% uptime guarantee
Email logs with configurable retention
API for programmatic management
GDPR compliant and privacy focused
No email storage on servers
Multiple domain support on paid plans
Postmark
Fast email delivery to inbox in seconds
API and SMTP integration options
Pre-built responsive email templates
Detailed tracking and analytics
Message streams for email separation
Bounce and spam monitoring
Expert customer support team
DMARC security tools included
Webhook notifications for events
Multiple programming language libraries
Domain authentication assistance
Real-time delivery statistics
ImprovMX
ImprovMX offers transparent pricing with a forever-free plan and scalable paid options.
The Free Plan includes 1 domain, 25 email aliases, basic forwarding features, and 7 days of email logs. This plan is perfect for personal projects and side businesses.
Premium ($9/month) expands to 30 domains, 100 aliases per domain, 10 routing rules per domain, 6,000 SMTP emails monthly, and up to 180 days of log retention with a 99% uptime guarantee.
Pro ($24/month) offers 100 domains, 200 aliases per domain, 50 routing rules per domain, 30,000 SMTP emails monthly, and the same extended logging and uptime guarantee.
Enterprise (Custom Pricing) provides unlimited everything with a 99.99% uptime guarantee, white-label options, and dedicated support. Contact their team for custom pricing based on your specific needs.
Postmark
Postmark offers clear pricing plans to fit different needs. Every account starts with a Free Developer Plan that includes 100 emails every month and never expires - perfect for testing or small projects.
The Basic Plan costs $15 per month and includes 10,000 emails. You can add more at $1.80 per 1,000 extra emails. This plan supports up to 4 users and 5 servers.
The Pro Plan at $16.50 monthly includes 10,000 emails with additional emails at $1.30 per 1,000. It offers up to 6 users, 10 servers, and includes inbound email features.
The Platform Plan costs $18 monthly for 10,000 emails, with extras at $1.20 per 1,000. It includes unlimited users, servers, and all advanced features.
High-volume senders can contact their team for custom pricing with dedicated IP addresses and priority support.