Turn off Postgrey for 1 domain?

[motokochan]

NetworkExpertise Wrote:Here is the output of the log files that help me determine this is a postgrey issue:

-- snip --

That's what it should look like. Note the error number is "450" which indicates the remote mail server should try again later. Usually there will be another attempt within 5 to 15 minutes. After that, the information is stored (from address, to address, ip) and any further communication will be allowed through.

Does the remote server every try back?

I know that MS Exchange 2003 and below didn't respond well to temporary errors at all and the message would sit in the SMTP queue until the server admin restarted the service. Service Pack 1 for Exchange 2003 fixed this issue (previous versions need a registry edit to fix the behavior).

(This kind of bad behavior is also why you should never let an Exchange server talk to the outside world.)