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troubleshooting Question

451 4.4.0 Primary target IP address responded with: "451 5.7.3 require basic

Avatar of mob_dream
mob_dreamFlag for Saudi Arabia asked on
ExchangeSBSEmail Protocols
7 Comments1 Solution4042 ViewsLast Modified:
Hi,
Only today my exchange 2007 stopped sending emails but receiving is OK. When I checked I found this message:
451 4.4.0 Primary target IP address responded with: "451 5.7.3 require basic

help please.
ASKER CERTIFIED SOLUTION
Avatar of Alan Hardisty
Commented:
This problem has been solved!
Unlock 1 Answer and 7 Comments.
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