06-11-2009, 02:12 PM
Join Date: Jun 2009
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I found out on BIS you cannot change the timeout, I'm fairly certain it is possible with a BES. I also found out that the Blackberry takes a snapshot of the mailbox upon opening it. If the mailbox has more than 900 messages then it is much more likely to timeout due to the vast size of the mailbox. This explains it better than I can.
"When the Blackberry Internet Service connects to an integrated account (this occurs once every 15 minutes), it takes a snapshot of the entire inbox. Generally, if the integrated accountxxx8217;s message count is greater than 900 messages, the Blackberry Internet Service will time out and no new mail will be brought over to the smartphone. However, messages may still arrive on the smartphone if the Blackberry Internet Service can take the snapshot of the entire inbox quickly enough.
To resolve the issue, please move some older messages into a subfolder so that the Blackberry Internet Service can connect successfully with the integrated account."