Dan
asked on
550 address unknown
I don't know why, but all of a sudden, when people send us emails, the senders are getting their emails returned iwth 550 address unknown (state 14)
I haven't made any changes to exchange, so that's strange. I host my own exchange server server 207 SP2.
I checked mxtoolbox.com and everything looks good there.
I haven't made any changes to exchange, so that's strange. I host my own exchange server server 207 SP2.
I checked mxtoolbox.com and everything looks good there.
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Can you attach the ndr?
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