Hi All,

    Running SBS Premium with a single NIC and have one user who frequently gets the following error when sending to one outside domain.  Sometimes it works and sometimes she gets this message.  Its my understanding that this problem started recently and no changes have been made on our end.

 

From: System Administrator
Sent: Tuesday, March 11, 2008 8:42 AM
To: John Smith
Subject: Undeliverable: SUBJECT REMOVED

Your message did not reach some or all of the intended recipients.

Subject: SUBJECT REMOVED
Sent: 3/11/2008 8:42 AM

The following recipient(s) could not be reached:

Smith, John on 3/11/2008 8:42 AM

Hi Robert,

    I don't know if they implemented anything new but i will answer your questions

1. Reverse DNS. Yes

2. SPF key. No

3. Sending via DNS. Yes

4. Smarthost. No

 

My user says it happens 1 in 10 emails to this company, and only this company.

 

Thanks,

Td