Originally Posted by gdpmumin
Yahoo provides instant reconciliation. I've read a couple of posts over the weekend that Sprint Nextel now provides instant reconcilliation. Other than that, polling via BIS 2.0 is pretty much the same as it was under the older system. Maybe a little quicker on average than before, but not much.
The quicker polling times are up to individual ISPs, not RIM. The ISP's servers have to be set to notify your BIS of a new message, at which time your BIS will pull your new messages. At this time, only Yahoo (and apparently Sprint Nextel) have these capabilities.
T-mobile and Verizon also provide instant reconcilation for sending email from the BB when the remote mail account is IMAP. As soon as you send from that account, the BIS sends a copy to the Sent folder on the IMAP server. When you delete messages sent your BB for that account, and after reconcilation happens (manually or within 10-15 minutes on the BB) it puts a copy of the messages in the Trash folder on the IMAP server.
I've searched everywhere and cannot find an ISP that can notify the BIS that new email has arrived for instant pickup of the mail account. If IMAP-IDLE is being used by the BIS, it would require a connected TCP conection between the BIS and the IMAP account (port 143 or 993). If, in fact, Sprint/Nextel's BIS implemetation is allowing IMAP-IDLE to function with ISP IMAP account, then this make more sense.
Can anyone who is noticing real time delivery post the email provider (besides Yahoo)?