RE: [IMail Forum] Spam relayed through server aka HELP - ImailProblem/Dictionary Attack

[R. Scott Perry]

Can anyone tell me how to test out Imail whether it accept
authentication. I know this is a very silly question but I really not
aware that user can authenticate to use my SMTP even though the Ip is
not in the "Relay for address".

IMail will always allow a user to send E-mail if they authenticate, no matter what your anti-relay settings.

Do you mean that if the spammer knows a username and password
for one of the domain mailbox then they can access my mail server from
any host IP address?

Yes (unless you block their IP address).

-Scott
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