Search found 3 matches

by ldelana77
Sat Sep 15, 2018 10:45 pm
Forum: Administrators
Topic: Force SMTP Authentication when sender in domain
Replies: 1
Views: 628

Re: Force SMTP Authentication when sender in domain

Found from the following Zimbra wiki ( https://wiki.zimbra.com/wiki/Enforcing_a_match_between_FROM_address_and_sasl_username_8.5 ) ; I would suggest to insert some words such as "force smtp auth" because I didn't find it at first from follow search ( https://wiki.zimbra.com/index.php?searc...
by ldelana77
Thu Sep 13, 2018 12:26 pm
Forum: Administrators
Topic: Force SMTP Authentication when sender in domain
Replies: 1
Views: 628

Force SMTP Authentication when sender in domain

I need to block email that come from port 25 ( SMTP ) when they suppose a sender address that exists in my domain. I received spam email to my domain users requesting bitcon etc... Surprisingly by default Zimbra doesn't require authentication for email incoming at SMTP when the sender is one of the ...

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