Re: Invalid message recipients - POP3 - using phone

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Quit using POP3. It's really a very limited protocol. Use MAPI. If your
users are off-site, use MAPI with RPC over HTTPS or a via VPN, or use OWA.
--
Ed Crowley
MVP - Exchange
"Protecting the world from PSTs and brick backups!"

"Dale" <Dale@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote in message
news:17DD97E9-450B-45D7-95B5-074A029A79A2@xxxxxxxxxxxxxxxx
When a user accesses the exchange server using a phone set up with outlook
POP3 they can recieve messages fine and as long as a recipient is in AD
they
can send to that email. However, when they try to respond or send a new
email
to a recipient outside of this domain I get the Invalid message recipients
System Administrator message. What can I do to eliminate this so that a
user
can send and receive email on there phones normally.
I do have the option checked in the setup of the phones that the server
requires authentication, before I did that they couldn't send anything,
even
internal.

Thanks for any suggestions

Dale


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