Hi Marcus,
Yes port 25 is blocked for all but EA subscription types but you should be able to send authenticated emails through port 587.
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Due to some requirements we need to have one Azure VM and install postfix on it to serve as a SMTP Relay server. As I read from some MS articles I can see that port 25 is blocked for my subscription so I'll have to use port 587 for relay purpose.
Can I do any of the following?
Thank you.
Hi Marcus,
Yes port 25 is blocked for all but EA subscription types but you should be able to send authenticated emails through port 587.
May I know is it possible to send out directly from postfix via port 587 without relaying to any SMTP server?