Originally Posted by Redflea
I have BIS, work email access via IMAP, all settings set as you note but also have Wireless Reconcile on, and delete from Handheld, or delete from Mailbox and Handheld both work.
Interesting. I've been told that Wireless Reconcile is only for BES accounts. For some reason, it was apparently getting in the way. I spent hours last night experimenting with different configurations and sending test messages, and the best I could come up with is...
1. Set "Delete on Prompt" in Email Reconciliation menu
2. Check "Synchronize deleted mail" in BIS email configuration
3. Set "On conflict, mailbox wins" in Email Reconciliation menu
4. Turn "Wireless reconcile" off in Email Reconciliation menu
These settings get the job done. If step 4, is superfluous, I must have made a mistake along the way, but at least it does no harm.