SMTP will not send external email - HELP!
Posted on 2004-08-27
I am in a major problem situation......last friday, SMTP suddenly quit delivering external email and it just kept these emails queued up. Tried multiple things and finally found a blurb on the internet which suggested removing and re-installing IIS. I did this and all the queued mail was delivered......however, not all the Exhchange 2000 services started so I searched some more and found that Exchange2000 + SP1 needed to be re-installed also....did that and SMTP started queueing external email again. Can receive external email, but not send....can receive and send internal email......
Running Win2k Server & Exchange 2000......
So, I played around with it for about 8 hours, and now I have really screwed it up and no external email is being queued, but rather all is being returned to senders with this error:
;550 Relaying denied
I created a new SMTP virtual server, tried new internet connector...changed a lot of settings.....but nothing would fix the queueing problem until I messed it up so now we get the 550 error message......
We have to external DNS servers provided by our ISP. Our firewall (Sonic Pro 100) points to these. The SMTP virtutal server points to these.....
I reviewed the event logs from the day it stopped and could find no indication as to why it stopped......need help desparately.
Please advise. Thanks.
Calvary Temple Christian Center