Some outgoing email being delayed and not delivered - Exchange 2003
I have a Microsoft SBE 2003 Server with Microsoft Exchange, when email is sent out of this server my users starting getting delayed email messages (error 4.4.7), a day or 2 later the message does not get delivered. This only happens with some addresses.
Reporting-MTA: dns;mydomain.com
Final-Recipient: rfc822;username@domainname
Action: delayed
Status: 4.4.7
Will-Retry-Until: Sat, 27 May 2006 13:54:50 -0700
X-Display-Name: user name
As a work around I am using my ISP outgoing mail server directly from the client and this is working.
Any suggestions? The current setup has been working for months without trouble and has suddenly started.
Reporting-MTA: dns;mydomain.com
Final-Recipient: rfc822;username@domainname
Action: delayed
Status: 4.4.7
Will-Retry-Until: Sat, 27 May 2006 13:54:50 -0700
X-Display-Name: user name
As a work around I am using my ISP outgoing mail server directly from the client and this is working.
Any suggestions? The current setup has been working for months without trouble and has suddenly started.
A fair amount of ISP will force you to relay e-mail through them. I would contact the ISP to see if they have made any changes that now force you to do so.
maybe the company that is not accepting your messages changed it's spam filtering rules and now you match as a spam source. Call this company and ask why your mail is not being accepted.
ASKER
The ISP does not force relay email. I have several people running their own smtp servers with the same ISP. The DNS-BL seemed to be a possible cause, however when we use the same domain name on another server it works fine.
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