I have an office with 5 computers, all on XP all with Office 2007.
The server is a SBS 2003 box with all updates & service packs.
The way this office works is a bit weird.
With outlook they have internal email accounts for internal communication. Then everyone has another outlook profile setup to an email account that gets external emails and can send them.
The reason for this is the boss wants to see everything coming & going in one spot.
All been in place working for 3 years no problems.
One friday afternoon only one PC started not being able to send emails via the internet profile.
If you send an email instantly you get a Undeliverable reply.
The only way to fix it was to recreate that profile. But after a few more days it would come back.
I reloaded the PC from scratch also thought 100% that would fix it. Nope.
This time i rebooted the server. That fixed it, but the next day it was back.
No errors in any event logs. I'm lost ??
Below is the Undeliverable email we get.
From: System Administrator
Sent: Friday, 5 November 2010 2:47 PM
Subject: Undeliverable: test
Your message did not reach some or all of the intended recipients.
Sent: 5/11/2010 2:47 PM
The following recipient(s) cannot be reached:
firstname.lastname@example.org on 5/11/2010 2:47 PM
This message could not be sent. Try sending the message again later, or contact your network administrator. Error is [0x80040111-00000000-00000000].