SendEmail is a lightweight, completely command line based, SMTP email agent. It was designed to be used in bash scripts, Perl programs, and web sites, but it is also quite useful in many other contexts. SendEmail is written in Perl.
1) Install SendEmail
In debian
#apt-get install libio-socket-ssl-perl libnet-ssleay-perl perl
#apt-get install sendemail
For other distributions:
Refer to the official site http://caspian.dotconf.net/menu/Software/SendEmail/
2) Run it
Here is an example:
sendEmail -f user@gmail.com -t myfriend@gmail.com \
-u "this is the test subject" -m "this is a test message" \
-s "smtp.gmail.com" \
-o tls=yes \
-xu user -xp password
3) Problems
If you get the following error:
"invalid SSL_version specified at /usr/share/perl5/IO/Socket/SSL.pm line 332"
It is a known bug: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=679911
A temporary workaround is to edit the file /usr/bin/sendemail on line 1907 by changing 'SSLv3 TLSv1'in to 'SSLv3',
1903 ## Start TLS if possible
1904 if ($conf{'tls_server'} == 1 and $conf{'tls_client'} == 1 and $opt{'tls'} =~ /^(yes|auto)$/) {
1905 printmsg("DEBUG => Starting TLS", 2);
1906 if (SMTPchat('STARTTLS')) { quit($conf{'error'}, 1); }
1907 if (! IO::Socket::SSL->start_SSL($SERVER, SSL_version => 'SSLv3 TLSv1')) {
1908 quit("ERROR => TLS setup failed: " . IO::Socket::SSL::errstr(), 1);
1909 }
1910 printmsg("DEBUG => TLS: Using cipher: ". $SERVER->get_cipher(), 3);
1911 printmsg("DEBUG => TLS session initialized :)", 1);
1912
1913 ## Restart our SMTP session
1914 if (SMTPchat('EHLO ' . $opt{'fqdn'})) { quit($conf{'error'}, 1); }
1915 }
1916 elsif ($opt{'tls'} eq 'yes' and $conf{'tls_server'} == 0) {
1917 quit("ERROR => TLS not possible! Remote SMTP server, $conf{'server'}, does not support it.", 1);
1918 }
