Free
Free
100 emails/month; no overages; never expires
100 emails/month · no overages · never expires
Checked 28 Sep 2026
Plans and prices
Postmark pricing
Basic
$15 a month
Starting at 10,000 emails/month; extra emails at $1.80 per 1,000
10,000 emails/month · extra emails $1.80 / 1,000 · 5 custom sending domains · unlimited emails/day · 45-day data retention
Checked 28 Sep 2026
Pro
$16.50 a month
Starting at 10,000 emails/month; extra emails at $1.30 per 1,000
10,000 emails/month · extra emails $1.30 / 1,000 · 10 custom sending domains · unlimited emails/day · retention up to 365 days · inbound email processing
Checked 28 Sep 2026
Platform
$18 a month
Starting at 10,000 emails/month; extra emails at $1.20 per 1,000
10,000 emails/month · extra emails $1.20 / 1,000 · unlimited custom sending domains · unlimited emails/day · retention up to 365 days · inbound email processing
Checked 28 Sep 2026
Custom activity retention
$5 a month
Only available on Pro plans or higher
Checked 27 Sep 2026
DMARC monitoring
$14 a month
Charged per domain
Checked 27 Sep 2026
Dedicated IP
$50 a month
Available to customers sending 300,000 emails per month or more; Pro plans or higher
Checked 27 Sep 2026
High-volume plans
Priced on request
Contact Postmark for pricing
Checked 27 Sep 2026