We recently moved some users from Exchange 2003 to Exchange 2010. We have users who go to other locations, and access their mail through OWA, using IE8. When a user attempted to send mail to a user, it was discovered that they could not connect to the contacts list. Also, if they type in a user's name who is in AD, the name does not verify itself.
If Firefox is used, everything works properly.
Could someone assist me with this problem?