The "Unknown User" message comes from IMail (or another mailserver), and indicates that the server receiving the E-mail doesn't recognize the account that the E-mail is being sent to.I am having a small problem. One company sends an email to my mail server. They get a return that says it is an unknown user.. They answer an email we send them. They get it back with unknown user. I gave them a completely different address. Mine. One time it goes through and never again. I had them send me an email to my personal address and it came through with no problems. What am I missing here?
In this case (BTW, it's the syslog or log####.txt that it would appear in), if the E-mail doesn't appear, then it isn't reaching your server.Oh yes, the logs show no record of ever receiving any emails that were sent other than the two that came through. I checked the syslog, virlog, declog, hilog and log####.txt. No where does it mention any of the emails that are not getting through.
I think the problem can be seen at http://www.dnsreport.com/tools/mail.ch?[EMAIL PROTECTED] . It seems that one of your backup mailservers doesn't accept mail addressed to you, and the other backup mailserver is down. Therefore, if they can't reach your mailserver for some reason (even due to a temporary problem on their end), the mail will go to your backup that will bounce it.
-Scott
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