Local IMAP Sync Performance

Sync performance for an IMAP account that’s on a local server (e.g., an IMAP server on the same network as the client), works well in Outlook 2016. Outlook 2016 was across the board faster for local IMAP. Especially for messages that had attachments, we saw Outlook 2016 run 2x-2.5x faster.

Local IMAP accounts worked well. While we would sometimes see syncing issues on both Outlook 2011 and 2016, they would resolve typically on the next sync. The tests were fairly consistent as well.

12-Chart-Sync-IMAP

Figure 12: Sync Performance — Local IMAP Account
(shorter is faster)