Internet email reply address showing internal email address

[KLYoung]

For no apparent reason, last week our internet email reply addresses started showing as our internal email address. This cauused one of two things to happen. 1. either the email is being returned stating the address showed an invalid sender or 2. If the intended recipient received the email they could not reply because there was an invalid email address

I went back to some "sent" emails. Before last week it showed the correct email address. Last weeks sent emails suddenly said the correct email address followed by "on behalf of" then the name of the sender. When you right click on this part of the from line it comes up with the internal email address properties for that sender which lists the internal email address

Does anyone know where this comes from and how to change it back to showing only the internet email address?????

 

[Lanwench [MVP - Exchange]]

I presume you're using Exchange server, yes? What version of Exchange, what
version of Outlook, and what services/mail accounts do you have set up in
Outlook?

 

[KLYoung]

I think this is what you are asking for: We are using Exchange Server 2000 (Microsoft 2000 Server), Outlook 2000 SP-3, Services are, Internet email - Comcast, Microsoft Exchange Server, Outlook Address Book. Does that info help.

 

[Lanwench [MVP - Exchange]]

Hi - first thing to note is that the version of Outlook you're running is
not supported with Internet mail & Exchange in the same profile - it can
lead to a lot of problems. If it's been working up til now with no errors,
that just means you've been lucky! Outlook 2002 and up handle multiple
account types a lot better.

Do you have your own registered Internet domain? If so, I'd suggest getting
rid of POP and hosting your own mail on the Exchange server...it's a lot
nicer, faster, and more centralized.