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eddiewickens
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Exchange email out on port 587

Hi
I have various independent exchange servers  (various versions) at numerous sites with internet connections with numerous ISPs.
One ISP blocks all port 25 traffic. they are saying to send out on port 587.
I am trying to send out directly rather than relaying via their smtp servers

If I do this surely various emails will not be accepted by those only receiving on port 25.

Or am I missing a trick?
ExchangeSBSEmail Protocols

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Alan Hardisty

8/22/2022 - Mon
SOLUTION
ckratsch

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ASKER CERTIFIED SOLUTION
Alan Hardisty

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