Have you had any problem with your Blackberry Internet Service (BIS) that keep on resending your old messages? This is not consistent, in IT we call it an "intermittent" issue.

I was able to discussed this blackberry issue with Research in Motion (RIM) Blackberry technical support today and she gave me suggestion to resolve the problem.

How to fix this problem:
1) First check your mailbox Inbox folder number of messages. This must be reduce to 900 messages or less. You can move your old messages to a new folder. The 900 messages limit mark is highly recommended for Blackberry Internet Service (BIS) user. This is tested to resolve this problem 9 out 10 according to RIM tech support.
2) Next action is to re-initiate your Blackberry phone by deleting your email information within blackberry website (not your e-mail server). This is to get an updated service book from Blackberry website.
3) Once it is re-establish, you will receive a welcome email from blackberry.
4) This process should resolve intermittent receiving old messages.

If the problem still occur we will continue to trouble shoot this issue.
- Troubleshooting of Blackberry website against your OWA website.
- Using Blackberry phone to track messages through “REF ID”.

If you have any question, post your comment.

Thank you.