Outgoing Email ============== For a simple, outgoing only email service, *ssmtp* is probably the easiest to setup. This can send email through your institutions smtp relay, or if you're in a pinch, gmail can be used. In the later case, it is necessary to use an existing gmail account to authenticate. If setting up several machines, the same account can be used, but there are benefits to creating a separate gmail account for each machine - primarily to make it a bit simpler to identify where the mail comes from. :: sudo apt-get install ssmtp Then edit */etc/ssmtp/ssmtp.conf* something like:: root=GMAIL_ACCOUNT@gmail.com mailhub=smtp.gmail.com:587 rewriteDomain= hostname=GMAIL_ACCOUNT@gmail.com FromLineOverride=YES UseSTARTTLS=YES AuthUser=GMAIL_ACCOUNT AuthPass=GMAIL_PASSWORD The downside is that all emails will come from the same account (GMAIL_ACCOUNT@gmail.com).