#5.7.1 smtp;550 5.7.1 Unable to relay

[badness]

Hi
Please help me before i go insane. We have an exchange 2003 server which is running out of space and memeory. I have built a new super server with huge ram and loads of space and joined our current site.(so I have 2 exchange servers in the smae site) I have moved myself over for testing and have experienced the most annoying problem. Intermitently i am unable to send mail internally or externally and get this message.

You do not have permission to send to this recipient. For assistance, contact your system administrator.
<servername.domain#5.7.1 smtp;550 5.7.1 Unable to relay for user@domain>

I have made sure that the recipient poilicy is fine, i have ensured that the both servers have the same default domain, I have made sure that DNS is working. I know that this must be a simple fix, Can anyone help

 

[badness]

ANYONE ????

There is no way i'm the only person to experience this

 

[58sniper]

Anything in the event logs? Can you receive ok?

Pat Richard, MCSE MCSA:Messaging CNA
Microsoft Exchange MVP
Want to know how email works? Read for yourself -

http://www.ietf.org/rfc/rfc2821.txt