Hi Team,
we are facing issues with some users not receiving emails from external domain.
Issue:
we received request from user that he needs additional smtp address and it needs to be primary address as well, keep old as primary address.
After making the changes user was able to receive email from internal users but not from external users. Currently we have 2 users facing this issue.
NDR message says The following organization rejected your message: mx record name
#5.2.0 smtp;550 5.2.0 mailbox unavailable.> #SMTP#.
Please advise how to fix this issue.
Thanks
Abhishek saxena
Abhishek Saxena