Today I’ll show, how to configure email sending with your Debian Linux. The ability to send mails is a very useful feature for every long-running server machine, it’s an easy and common way to notify the administrator in case of any problems.
Here are configuration steps for mail-sending with Exim and Google Mail account (Google Apps accounts work the same way too).
- first of all, we need to have Exim running. If not installed - install exim4 via:
apt-get update apt-get install exim4
Configuration should be presented automatically after the installation. However, you can start configuration wizard of Exim every-time with
- Answer all questions of the configuration wizard. The important one is.
- a general type of mail configuration. Choose “sent by smarthost” if you wanna use the ability of e.g. Googlemail account. Then SMTP with dynamic IP would be difficult ;)
- Provide a System Mail Name: e.g. mycompany.com
- Provide IP addresses to listen on for incoming SMTP connections
Use 127.0.0.1 if you want only to send emails from the local machine and nothing for other IP’s.
Provide Machine handling outgoing mail for this host (smart host):
smtp.gmail.com::587Other parameters are not so important in our use case.
Now it’s time to provide credentials of your Gmail account. Therefore you need edit
/etc/exim4/passwd.clientfile. Insert that for Standard or google app account but replace with valid mail and password.
gmail-smtp.l.google.com:yourYourMail@googlemail.com:yourPass *.google.com:yourYourMail@googlemail.com:yourPass smtp.gmail.com:yourYourMail@googlemail.com:yourPass
- Make sure
/etc/exim4/passwd.clientbelongs to user root and group Debian-exim which is normal so on my Debian. If not, run that command:
chown root:Debian-exim /etc/exim4/passwd.client
- Actualize the whole configuration with:
So now everything should be in place and we are ready for a first test. Simplest console test should be working via:
echo "Server Mail Test Message " | mail -s "Just Test" SomeMail@someDomain.org
Watch logs with:
tail -1000f /var/log/exim4/mainlog
when you see something like this everything vent perfect:
2010-02-14 23:00:26 1NgmVu-0007v8-Kt < = firstname.lastname@example.org U=root P=local S=424 2010-02-14 23:00:28 1NgmVu-0007v8-Kt => testMail@mycompany.org R=smarthost T=remote_smtp_smarthost H=gmail-smtp-msa.l.google.com [220.127.116.11] X=TLS1.0:RSA_ARCFOUR_MD5:16 DN="C=US,ST=California,L=Mountain View,O=Google Inc,CN=smtp.gmail.com"
Appreciate your feedback.