Exchange vs. IMAP
As you read on, you’ll notice that IMAP is frequently faster at syncing than Exchange accounts. This is not actually a fair comparison. Why? IMAP is actually much lighter weight. Exchange does a lot more than IMAP. There’s XML metadata with Exchange syncs that is not present with IMAP, so the transactions are larger on Exchange syncs.
Of course, you get benefit from using Exchange accounts that IMAP simply does not support including online archives, delegation, syncing categories, client support for updating rules, free/busy support, and coming soon, propose new time support for scheduling. You also get streaming notifications, which means much faster notification.
In addition, you get a far more reliable sync — one that rarely sees errors, or has issues — and you just don’t see Exchange accounts have problems such as the way IMAP can so easily get confused.
- Page 1: Intro
- Page 2: Overview
- Page 3: Top-Level Results
- Page 4: Test Environment
- Page 5: Specific Testing
- Page 6: App Launch and Quit
- Page 7: Operations
- Page 8: Searching
- Page 9: CPU and Memory Footprint
- Page 10: Energy Footprint
- Page 11: User Interface Performance
- Page 12: Sending, Receiving, and Notification Performance
- Page 13: Sync Performance
- Page 14: Exchange vs. IMAP
- Page 15: Local Exchange Sync Performance
- Page 16: Local IMAP Sync Performance
- Page 17: Office 365 Sync Performance
- Page 18: Gmail Sync Performance
- Page 19: What about Mail.app?
- Page 20: From the Server Perspective
- Page 21: Conclusion