Outgoing email failed
Problem reported by Abdul Khafiq Abdul Latif - 8/18/2020 at 6:28 PM

Recently we setup a smartermail server in azure. However the outgoing email failed. We receive below error, can please advice how to solve it?

Remote Server returned: '601 Attempted to send the message to the following IPs:,'

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Sébastien Riccio Replied
I think that Azure blocks by default outgoing mails to port 25 (which is the port used for inter mail-servers communication) to avoid their servers to be used by spammers.

I guess you have to contact them to unblock it.

Sébastien Riccio
System & Network Admin

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