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Exchange1471
5 pts.
 disable internal but allow external emails in outlook/exchange 2003
Exchange 2003, Exchange Send/Receive, Outlook, Outlook 2003, Outlook send/receive
How can we disable internal email but allow external email for short period on exchange 2003/outlook?

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ASKED: February 16, 2010  9:43 AM
UPDATED: February 26, 2010  5:30 PM
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Not 100% sure but maybe slap a spam filter on your domain name.com to block internal e-mails. When the short period is over remove the spam filter. Just a suggestion
Last Wiki Answer Submitted:  February 26, 2010  5:30 pm  by  ToddN2000   3,910 pts.
All Answer Wiki Contributors:  ToddN2000   3,910 pts.
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To disable internal email, you can hide the address from the global address list and but the external address will still be valid and the mailbox will receive it.

Moto
 460 pts.
 

Moto, hiding the address from the GAL won’t prevent those who have previously emailed that person from doing so again. I don’t know of a way to do this is Exchange 2003. It’s easy to do in Exchange 2007.

Technochic
 56,975 pts.
 

I would remove their cached email addresses or at least delete that one for the user from their cached addresses. other than that, i’m not sure how it could be done.

Moto
 460 pts.