another mailbox on the same server i am able to reach the same address. any
[ snip ]
I don't think that Exchange is creating this message. Check the SMTP
Protocol Log files and see exactly what's happening.
I suspect that somewhere a SMTP server has been set up to reject
messages that look something like this:
MAIL FROM: <>
Exchange accepts multi-recipient error messages.
You should see this in the log file when the Exchange server sends the
MCSE+I, Exchange MVP
MS Exchange FAQ at http://www.swinc.com/resource/exch_faq.htm
8. OWA Problem
10. Error -550
12. Error 550
13. SMTP Error 550