The unit can be set up to send emails. Among several packages available, ssmtp is a nice and simple solution for sending emails from the command line without having to install a mail server. Yet, it is perfectly compatible with the mail() function of Php.

$ apt-get install ssmtp mailutils

To make the ssmpt work, first edit the config file:

$ nano /etc/ssmtp/ssmtp.conf

Chooe an smtp service, for example smtp.gmail.com, and specify an authorized account.

FromLineOverride=YES UseSTARTTLS=YES mailhub=smtp.gmail.com:587 root= This email address is being protected from spambots. You need JavaScript enabled to view it. AuthUser= This email address is being protected from spambots. You need JavaScript enabled to view it. AuthPass= gmail_password

Examples to send an email from the command line:

$ echo "Testing" | mail -s "subject_msg" mail_address
$ mail -s "subject" mail_address1,mail_address2 < mail_contents.txt