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Terminology
|MTA | Mail transfer agent | |POP3| Post Office Protocol 3 | |SMTP| Simple Mail Transfer Protocol| |IMAP| Internet Message Access Protocol|
There are a number of Linux e-mail agents - postfix, sendmail, exim (insecure) and qmail (dead).
Programs
sudo apt-get install postfix mailutils
This will register your domain in the /etc/postfix/main.cf file.
Internal Mail
sendmail -t roach-1
Write a message and stop composition with Ctrl+D.
The mail is kept in /var/mail/ and you can read it with:
Aliases
Aliases are groups of mail recipients. The lists are kept under /etc/aliases.
crew: matthew@gmail.com,ghost,danial@yahoo.com
Update the list of aliases from this with:
sudo newaliases
Then you can:
sendmail -t crew
... and send to the whole crew.
View pending e-mails using:
mailq