Compare Tools
Pick a category, then select 2–3 tools to compare side by side.
Category
Select 2–3 tools to compare
Mailgun
PostmarkTransactional
Marketing
Inbound Parsing
Template Engine
Deliverability Tools
Pricing
Free trial (100 emails/day)$35/mo Foundation$90/mo ScaleCustom Enterprise
$15/mo (10k emails)$50/mo (50k emails)$100/mo (125k emails)Custom high volume
Open Source
Self-Hosted
SDK Languages
pythonjavascriptgojavarubycsharpphp
pythonjavascriptrubyjavacsharpphp
Frameworks
None listed
None listed
Compliance
soc2gdpr
soc2gdpr
Best For
Email API with strong inbound email parsing — useful for agents that need to receive and process emails, not just send
Best-in-class transactional email deliverability — fast inbox delivery times and transparent uptime reporting
Limitations
Free tier is limited to a trial period; UI is less polished than competitors; owned by Sinch, product direction less predictable
No free tier; strictly transactional email only — no marketing or bulk email; fewer SDK languages than SendGrid
Supported Not supported Unverified