mailx -s "This is all she wrote" < /dev/null something@fdsfds.com
 or
 mail -s "hfdsfds" something@fdsfds.com

touch $HOME/.mailrc

#---------------------------#
# Setting mailx for gmail!! #
#---------------------------#
set smtp-use-starttls
set smtp-auth=login
set smtp=smtp://smtp.gmail.com:587
set from="your_gmail_username@gmail.com"
set smtp-auth-user=your_gmail_usernameg@gmail.com
set smtp-auth-password=your_gmail_password
set ssl-verify=ignore
set nss-config-dir=/etc/ssl/certs

echo "Testing, Testing, Testing" | mailx -s "My test..." someone@whatever.com

andrew@ilium~$ echo "Testing, Testing, Testing" | mailx -v -s "My test..." xxx@gmail.com
Resolving host smtp.gmail.com . . . done.
Connecting to 173.194.72.108:587 . . . connected.
220 smtp.gmail.com ESMTP u64sm18738348pfa.86 - gsmtp
>>> EHLO ilium.andrews-corner.org
250-smtp.gmail.com at your service, [203.158.63.248]
250-SIZE 35882577
250-8BITMIME
250-STARTTLS
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-CHUNKING
250 SMTPUTF8
>>> STARTTLS
220 2.0.0 Ready to start TLS
>>> EHLO ilium.andrews-corner.org
250-smtp.gmail.com at your service, [203.158.63.248]
250-SIZE 35882577
250-8BITMIME
250-AUTH LOGIN PLAIN XOAUTH2 PLAIN-CLIENTTOKEN OAUTHBEARER XOAUTH
250-ENHANCEDSTATUSCODES
250-PIPELINING
250-CHUNKING
250 SMTPUTF8
>>> AUTH LOGIN
334 VXNlcm5hbWU6
>>> YW5kcmV3LmRhdmlkLnN0cm9uZ0BnbWFpbC5jb20=
334 UGFzc3dvcmQ6
>>> Pz8lPTQyMDk1WnhpdXlxbQ==
235 2.7.0 Accepted
>>> MAIL FROM:<xxx@gmail.com>
250 2.1.0 OK u64sm18738348pfa.86 - gsmtp
>>> RCPT TO:<xxx@gmail.com>
250 2.1.5 OK u64sm18738348pfa.86 - gsmtp
>>> DATA
354  Go ahead u64sm18738348pfa.86 - gsmtp
>>> .
250 2.0.0 OK 1455275914 u64sm18738348pfa.86 - gsmtp
>>> QUIT
221 2.0.0 closing connection u64sm18738348pfa.86 - gsmtp
andrew@ilium~$