C# .NET - 554 relay access denied exchange - Asked By Sharad Tripathi on 14-Jan-10 12:44 AM
we get error "554 <firstname.lastname@example.org>: relay access denied" only with a few mail recipients. My configuration: Exchange 2007 SP1
Please help me for this issue
relay access denied - mv ark replied to Sharad Tripathi on 14-Jan-10 01:32 AM
As explained here - http://forums.msexchange.org/m_1800494984/tm.htm , Relaying means an attempt to send a message to an SMTP server not acting as the authority for the recipient address.
Check the above link for tips on resolving the issue.