GNU Mailutils

3.2.6 Sender Address Statements

The following two statements configure the email that mailutils libraries use as sender address:

Configuration: email-addr email ¶

Sets the current user email address.

Configuration: email-domain domain ¶

Configures the domain name that will be appended to unqualified email addresses.

In the absense of both these statements, the sender email address is constructed by concatenating the username, ‘@’ sign, and the host name of the machine. If email-domain is present, the domain it defines is used instead of the hostname. Finally, if email-addr is present, its value is used as sender email.