Originally Posted by whsbuss
I'm not so sure about that. I'm on Verizon and when I delete gmail on my BB it gets deleted on gmail. BIS 2.3 also supports iCal. Try creating an event on your Gmail calender and invite your BB email address. See if you can accept it. Or if you have a Yahoo email account try to add it to your T-Mo BIS account. Then send an email to the Yahoo account, login online to Yahoo mail, then read/delete it. It would update the BB message status (2-way reconcilation). If it works, you are indeed on BIS 2.3
I have BIS with Cingular Blue (old ATT). I followed your instructions with my yahoo account already setup with BIS. I email my yahoo account from another email and it also went to the BB. Then i logged in to Yahoo mail on my pc and read the email. The BB still showed a new message. So it did not update. Then i deleted the email on Yahoo and it was still on my BB as a new message.
btw, the other way works. that is if i had read/deleted the message on my bb, it would have updated on yahoo