Fedora14: sendmail / SMTP / Gmail relay

- Sendmail, SMTP, Gmail relay on Fedora 14

su - # login as root

yum -y install sendmail-cf # install sendmail

cp /etc/mail/sendmail.mc /etc/mail/sendmail.mc.orig # make a backup

emacs /etc/mail/sendmail.mc # edit configuration

- Correct

define(`SMART_HOST',`smtp.gmail.com')dnl

define(`RELAY_MAILER_ARGS', `TCP $h 587')dnl

define(`ESMTP_MAILER_ARGS', `TCP $h 587')dnl

define(`confAUTH_MECHANISMS', `EXTERNAL GSSAPI DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')dnl

FEATURE(`authinfo',`hash /etc/mail/auth/client-info')dnl

TRUST_AUTH_MECH(`EXTERNAL DIGEST-MD5 CRAM-MD5 LOGIN PLAIN')

- Save

mkdir /etc/mail/auth # a place to store credentials

emacs /etc/mail/auth/client-info # edit credentials file

AuthInfo:smtp.gmail.com "U:root" "I:@gmail.com" "P:"

- Check Openssl

makemap hash client-info < client-info
chmod 700 /etc/mail/auth
chmod 600 /etc/mail/auth/*
cd /etc/mail
make # compile configuration
service sendmail restart # read new configuration

- Send a test email.

echo 'this is a test'| mail -s test_email user@example.com

If it fails, read /var/log/maillog and /var/log/messages.