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Mail Relay Agent

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I read an article that said to disable the mail relay agent on a mail server to prevent unauthorized users from sending mail anonymously
from the mail server. Aside from disabling relay is there another workaround?

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by acattr

Allow relaying in the internet mail connector. and set the option to authenticate. SMTP/POP users must use authentication on thier mail programs.

by acattr

that means that only users that authenticate are allowed to relay. You already authenticate when recieving mail, make it authenticate when you send.

by acattr

that means that only users that authenticate are allowed to relay. You already authenticate when recieving mail, make it authenticate when you send.

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