| List name | Post address | Description |
|---|---|---|
| Postfix-users | postfix-users@postfix.org | International list for discussions about using Postfix: questions, problem reports, or feature requests. Open subscription, unmoderated, posting by members only. |
| TLSRPT | tlsrpt@list.sys4.de | A mailing list dedicated to TLSRPT (RFC 8460) in general and sys4's TLSRPT reporting service in particular. |