Mailgun vs Postmark: transactional email pricing compared
Updated 2026-11-08 · listed A to Z, not ranked
Mailgun and Postmark both sell email APIs and SMTP for transactional mail. Both start paid plans at $15 a month for 10,000 emails; they differ in free tiers, plan ladders and add-ons.
Listed A to Z, from mailgun.com/pricing and postmarkapp.com/pricing on Nov 8, 2026.
- Free tier
- $0: 100 emails/day
- Entry paid plan
- Basic from $15/mo, 10,000 emails/mo
- Extra emails on entry plan
- $1.80 per 1,000 (Basic 10k tier)
- Higher plans listed
- Foundation $35/mo, 50,000 emails/mo (free for 1 month); higher tiers on the page
- Free tier
- $0: 100 emails/month, no overages
- Entry paid plan
- Basic $15/mo, 10,000 emails/mo
- Extra emails on entry plan
- $1.80 per 1,000
- Higher plans listed
- Pro $16.50/mo ($1.30 per extra 1,000); Platform $18/mo ($1.20 per extra 1,000), at 10,000 emails
How we checked: Prices in USD per month as shown on each official pricing page on Nov 8, 2026. No totals or “cheaper” verdicts: your cost depends on volume and add-ons. Confirm with each provider before you buy.
How they differ
- Free tier. Mailgun’s free plan is counted per day (100/day); Postmark’s per month (100/month) with no overages.
- Add-ons. Postmark lists dedicated IPs from $50 per month per IP. Mailgun prices email validations separately, from $1.20 per 100 for the first 5,000.
- Same entry price. Both list $15/month for 10,000 emails and $1.80 per extra 1,000 on the entry plan; the ladders differ above that.
FAQ
Is Mailgun or Postmark free?
Mailgun lists a $0 plan with 100 emails per day; Postmark a $0 plan with 100 emails per month and no overages (official pricing pages, Nov 8, 2026).
What does an extra 1,000 emails cost?
On the entry plans both list $1.80 per 1,000. Postmark Pro lists $1.30 and Platform $1.20 per extra 1,000.
Sources (official pages, read 2026-11-08)
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