mailq — show contents of the mail queue
Synopsis
mailq
Description
This is a link to the ssmtp binary. It invokes /usr/sbin/sendmail with the -q option. It is provided for compatibility with the sendmail program.
In this case it does absolutely nothing since sSMTP does not support mail queues and is just there to avoid programs returning error messages.
Info
July 2001 Debian GNU/Linux