[cobalt-users] Sendmail Authentification Warning

["Richard Donahue" <sales@xxxxxxxxxxxxx>]

One of my users has nms FormMail.pl and when someone uses his form I see in
the mail log, " Authientification-Warning www.mydomain.com : myuser set
sender to email@xxxxxxxxxxxx using -f"

How do I fix this?

Thanks,

Rich
EBS