==== Required information ====
- iRedMail version: v0.4.2
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Web server (Apache or Nginx): Apache
- Linux/BSD distribution name and version: Ubuntu 14.04
- Related log if you're reporting an issue:
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I just stood up a new iRedmail server because I wanted to try the SOGo integration. I'm noticing that when using Activesync the folders show up fine in Outlook 2013, but emails don't show up even after hours of waiting when I try syncing a large mailbox with 3GB of data. Small mailboxes sync fine. Is there anyway to speed this up? Using IMAP with CalDav on Thunderbird works flawlessly, but my users are Outlook die hards.