'Remote Server returned '550 5.1.10 RESOLVER.ADR.RecipientNotFound; Recipient not found by SMTP address lookup'
I have an exchange server 2016 and I've created a user, say [email protected]
I followed the steps as told in this video: https://www.youtube.com/watch?v=GN2mZ6qOWf8
I'm trying to send a mail from [email protected] in the exchange server to any outlook account in the outside world, for example, [email protected]
But I'm unable to send a mail from testuser1 and I'm receiving this error on the exchange server Remote Server returned '550 5.1.10 RESOLVER.ADR.RecipientNotFound; Recipient not found by SMTP address lookup'
Is it even possible to do so because both the domains are completely different or am I missing something here?
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