root=username@gmail.com
mailhub=smtp.gmail.com:465
rewriteDomain=gmail.com
AuthUser=username
AuthPass=password
FromLineOverride=YES
UseTLS=YES

ssmtp recepient_name@gmail.com

To: recipient_name@gmail.com
From: username@gmail.com
Subject: Sent from a terminal!

Your content goes here. Lorem ipsum dolor sit amet, consectetur adipisicing.
(Notice the blank space between the subject and the body.)

ssmtp recipient_name@gmail.com < filename.txt

marco@dagobah:~$ mail -v marco.ceppi.use@gmail.com
Subject: Hello World!
This is an email to myself.

Hope all is well.
.
Cc:

apt-get install libio-socket-ssl-perl libnet-ssleay-perl sendemail

sendemail -f fromuser@gmail.com -t touser@domain.com -u subject -m "message" -s smtp.gmail.com -o tls=yes -xu gmailaccount@gmail.com -xp gmailpassword

apt-get install mpack

mpack -s "file you wanted" ./data.pdf loser@supergoober.cn

sudo apt-get install postfix

echo "test message" | mailx -s 'test subject' myemail@mydomain.com

sendmail -t receiver@example

hanoo@hp_laptop% nc 127.0.0.1 25
220 hp_laptop.localdomain ESMTP Postfix
EHLO man
250 hp_laptop.localdomain
MAIL FROM: <netcat@postfix.com>
250 2.1.0 Ok
RCPT TO: <target@host.com>
250 2.1.5 Ok
data
354 End data with <CR><LF>.<CR><LF>
This is the body of my mail,
this is the second line...
.
250 2.0.0 Ok: queued as 9C12E7F404

mail -s "subjet" -a "attchedfile_name" someone@dest_email.com

cat "afile" | mail -s "subject" someone@dest_email.com

echo message | mail username@localhost

sudo apt-get install sharutils mailutils
uuencode filename filename | mail user@example.com

mail name@mailserver.com -s "Attached file" <<EOF
Hi

~| uuencode $HOME/filename.txt filename.txt

EOF

echo "Test message from Linux server using ssmtp" | sudo ssmtp -vvv  somebody@mil.gov
[<-] 220 smtp.gmail.com ESMTP v193sm19198825qka.18 - gsmtp
[->] EHLO localhost
[<-] 250 SMTPUTF8
[->] STARTTLS
[<-] 220 2.0.0 Ready to start TLS
[->] EHLO localhost
[<-] 250 SMTPUTF8
[->] AUTH LOGIN
[<-] 334 VXNlcm5hbWU6
[->] aG94Z2VuZUBrrrFpbC5jb20=
[<-] 334 UGFzweliecmQ6
[<-] 534 5.7.14  https://support.google.com/mail/answer/78754 v193sm19198825qka.18 - gsmtp
ssmtp: Authorization failed (534 5.7.14  https://support.google.com/mail/answer/78754 v193sm19198825qka.18 - gsmtp)