listmonk
Mail ServersSelf-hosted newsletter and mailing list manager
Replaces Mailchimp, Sendinblue
Best Webhooks Mail Servers for self-hosting
The 6 best Webhooks mail servers you can self-host, ranked by community traction.
Postal
Mail ServersComplete mail delivery platform for outgoing email
Replaces SendGrid, Mailgun
Mautic
Mail ServersOpen-source marketing automation platform
Replaces HubSpot, Marketo
Mailtrain
Mail ServersSelf-hosted newsletter application
Replaces Mailchimp
Rspamd
Mail ServersFast, modern spam filtering system
Cuttlefish
Mail ServersTransactional email server with click and open tracking
Replaces Mailgun, SendGrid
No apps match these filters.
At a glance
| App | Deploy effort | Difficulty | Min. RAM | License | ★ Stars |
|---|---|---|---|---|---|
| listmonk | Under-an-hour setup | Easy | 512 MB | AGPL-3.0 | 23,776 |
| Postal | Under-an-hour setup | Hard | 2,048 MB | MIT | 16,862 |
| Mautic | Under-an-hour setup | Hard | 2,048 MB | GPL-3.0 | 10,760 |
| Mailtrain | Under-an-hour setup | Medium | 1,024 MB | GPL-3.0 | 5,756 |
| Rspamd | Under-an-hour setup | Medium | 256 MB | Apache-2.0 | 2,549 |
| Cuttlefish | Under-an-hour setup | Medium | 1,024 MB | AGPL-3.0 | 1,626 |
Quick picks
- Most adopted: listmonk (23,776 GitHub stars).
- Lightest footprint: Rspamd (from 256 MB RAM, against 2,048 MB for the heaviest here).
- Licensing: 2 of 6 use AGPL-3.0; check the rest individually if you plan to modify and redistribute.
Every option here is open-source and self-hostable, tagged Webhooks within the mail servers category. Deploy effort is graded from published container recipes, not vendor claims — see the methodology.