There are many ways to send mails from CLI.
If you don't want to make change to your BIG-IP config. you can use the "telnet" option.
If you don't mind, you can first set the SMTP to use :
tmsh modify /sys outbound-smtp mailhub mail.mydomain.com:25
Then launch the following command to send a mail :
echo "test mail" | mail -vs "Test email for SOL13180" email@example.com
Hope it helps
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you can use telnet:
telnet localhost smtp Trying 127.0.0.1... Connected to localhost.localdomain (127.0.0.1). Escape character is '^]'. 220 fbreveal.com ESMTP Sendmail 8.13.8/8.13.8; Tue, 22 Oct 2013 05:05:59 -0400 HELO yahoo.com 250 tecadmin.net Hello tecadmin.net [127.0.0.1], pleased to meet you mail from: firstname.lastname@example.org 250 2.1.0 email@example.com... Sender ok rcpt to: firstname.lastname@example.org 250 2.1.5 email@example.com... Recipient ok data 354 Enter mail, end with "." on a line by itself Hey This is test email only Thanks . 250 2.0.0 r9M95xgc014513 Message accepted for delivery quit 221 2.0.0 fbreveal.com closing connection Connection closed by foreign host.