Courier Mail Server vs Postfix
Courier Mail Server
courier-mta.orgPostfix
postfix.orgSide by side
| Figure | Courier Mail Server | Postfix |
|---|---|---|
| Price from | Free | — |
| Free plan | Yes | — |
| Free trial | — | — |
| Open source | — | — |
| macOS | — | Yes |
| Linux | Yes | Yes |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 0 |
| Spec score · Mail Server Software | 8.5 (#1) | 7.2 (#30) |
| Deployment | It can act as an intermediate mail relay, receive mail for multiple domains, or do both. | Postfix is built from source and runs on UNIX-like systems; operating-system and appliance vendors also distribute ready-to-run versions. |
| Filtering | Integrated mail filtering supports administrator-installed external filters and recipient-specified rules through maildrop. | Postfix supports content filters and the Sendmail Milter mail-filter protocol. |
| Integrations | The server can use LDAP, MySQL, or PostgreSQL-based authentication databases and supports LDAP-based mail routing. | The add-on directory lists third-party tools for authentication, content filtering, policy services, webmail, and other functions; entries are maintained by their authors without formal evaluation. |
| Product | Courier is an integrated mail and groupware server providing ESMTP, IMAP, POP3, webmail, and mailing list services. | Postfix is Wietse Venema’s mail server, created as an alternative to Sendmail. |
| Support | The site lists an unmoderated courier-users mailing list for questions, bug reports, and comments, plus a separate read-only announcement list. | The postfix-users mailing list is for questions, problem reports, and feature requests; non-member postings are silently discarded. |
Plans
In their own words
Courier Mail Server
Courier Mail Server has no write-up on Specifiction yet; its figures are above.