Retrieved 2026-09-27
Cooper Email vs Mailgun
Mailgun is an email delivery API with inbound routes. Cooper is an agent inbox that stores and searches mail.
Mailgun’s free plan is a daily send cap with short log retention. Cooper Free is a monthly inbox allowance.
Sources: Mailgun pricing
| Mailgun | Cooper Email | |
|---|---|---|
| Free | $0 · 100 emails/day · 1 custom sending domain · 1 inbound route · 1 day log retention | $0 · 5 inboxes · 5,000 emails/month · 0 custom domains · mail kept until the account holder asks for deletion |
| Basic | Starting at $15/month · 10,000 emails/month · 1 custom domain · 5 inbound routes · overage from $1.80 / 1,000 | Starter $12/month · 25 inboxes · 25,000 emails/month · 15 custom domains |
| Foundation | Free for 1 month, then $35/month · 50,000 emails/month · 1,000 custom sending domains · overage from $1.30 / 1,000 | Pro $99/month · 300 inboxes · 250,000 emails/month · 200 custom domains |
| Scale | Free for 1 month, then $90/month · 100,000 emails/month · overage from $1.10 / 1,000 | Pro stays $99/month through 250,000 emails, then $1 / 1,000 overage if that price is on the subscription |
| Stored inbox | Log retention from 1 to 30 days depending on plan. Inbound routes forward mail. | Messages stored for the account, searchable, with message.received webhooks |
- Mailgun Enterprise is custom. Dedicated IP prices are on Mailgun’s page and are not a Cooper feature.
- Cooper does not offer Mailgun’s validation product or send-time optimization.