We are running an internal office network (3 computers) which each access internet mail from our ISP using normal pop 3 accounts. For some reason, when I send an email to another of the users which has the same domain name, the problem has cropped up recently that they do not receive the emails, nor do I receive it if I include my self on To: or CC: lines. Mails going out to a different domain appear to go out fine and normally. Also, problem seems to be that the mail never gets from Outlook to my ISP mail server (we know because we could check the account via the webmail service, and the email never showed up). After troubleshooting with our ISP, checking firewall settings (McAfee) and router (Linksys), it appears to me that the problem is with the email signatures on my messages. When I turn off the sigs, messages go through to those with the same domain name with no problems. In all cases, the messages appear in the "Sent Items" box in Outlook, so I never even knew we had a problem until I started NOT seeing emails I had copied myself on. This problem seems to have started inexplicably, and I cannot figure out how to fix it. I have tried deleting out my old sig files and creating new ones, but same thing happens. While it's not important that I have a sig file on email going to others in my domain (i.e., internally), I do want it to go to those outside our domain, as it's part of our brand identity. I'd like to come up with a solution that allows me to keep signature files turned on for all new messages/replies. Can anyone help?

Hi...I am having the same exact problem..did you find out what was causing this to happen?? Ash