saslfinger --VERSION (return code: 0)
/usr/bin/saslfinger: illegal option -- -
/usr/bin/saslfinger: illegal option -- V
/usr/bin/saslfinger: illegal option -- E
/usr/bin/saslfinger: illegal option -- R
/usr/bin/saslfinger: illegal option -- S
/usr/bin/saslfinger: illegal option -- I
/usr/bin/saslfinger: illegal option -- O
/usr/bin/saslfinger: illegal option -- N
saslfinger --help (return code: 0)
/usr/bin/saslfinger: illegal option -- -
saslfinger -s
Check server-side SMTP AUTH configuration
saslfinger -c
Check client-side SMTP AUTH configuration
saslfinger -h
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Read man (1) saslfinger for a detailed discussion on what
saslfinger may do for you.