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Ivan2018-01-12 00:30:40
linux
Ivan, 2018-01-12 00:30:40

How to enable smtp postfix authentication?

Colleagues, good afternoon.
There is postfix, configured as a mail gateway.
Relay from an external network is prohibited.
But if you send on behalf of the internal domain to the internal domain, then the sending works.
Question - how to make it so that outside the server would only accept letters for the internal domain, but would not allow sending on behalf of this domain outside?

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