I've a question regarding the over all design of push email and specifically the approach taken by Exchange ActiveSync.
As I understand there are two basic ways to get push email with the following architecture
Device <---> Push Email Server <---> Actual Email server
Considering this, what type of push email service does Exchange Activesync actually offer?
(AFAIK, white label push solution from Emoze/Synchronica uses the 1st approach - constant connection over something like IMAP-IDLE).
I think Exchange ActiveSync offers something similar to IMAP-IDLE, see below...
http://technet.microsoft.com/en-us/library/aa997252.aspx
If you've come to a different conclusion please post. Thanks!