IIRC, on BES everything passes through the companies server, they can tell you are accessing the Yahoo site, they can tell you are reading e-mails. as far as the content of the email, i'm not 100% sure. I'm like 80% sure, there might be someone on a BES system that can better answer that but i'd sticking with 'yes' until proven otherwise.
Posted from my CrackBerry at wapforums.crackberry.com
our administrator is BIS, I think there is a difference. Plus it seems that the email content data is on the yahoo site, not my bberry. However, I'm a super novice in this world