Starter
$10 a month
1,000 emails / month · 500 contacts · 1 custom domain · 3 mailboxes · Full email UI · User campaigns · REST API & npm SDK · Basic support
Checked 4 Oct 2026
Plans and prices
Mailmark pricing
Pro
$50 a month
25,000 emails / month · 10,000 contacts · 5 custom domains · Unlimited mailboxes · Full email UI · User campaigns · REST API & npm SDK · Priority support
Checked 4 Oct 2026
Business
$100 a month
100,000 emails / month · 50,000 contacts · Unlimited domains · Unlimited mailboxes · Full email UI · User campaigns · REST API & npm SDK · Dedicated support
Checked 4 Oct 2026