| Long: mail-auth | |
| Arg: <address> | |
| Protocols: SMTP | |
| Help: Originator address of the original email | |
| Added: 7.25.0 | |
| See-also: mail-rcpt mail-from | |
| Category: smtp | |
| --- | |
| Specify a single address. This will be used to specify the authentication | |
| address (identity) of a submitted message that is being relayed to another | |
| server. |