SMTP: "Help" Command
This signature detects attempts to determine if the SMTP server supports the "HELP" command, which can provide users with an available SMTP command list.
References
URL: http://www.unoverica.com/documentation/ucm/mt211g14.html#1065
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3