12:14:09 Ignored broken message (SyncMail). 12:13:06 Ignored broken message (SyncMail). 12:12:51 Ignored broken message (SyncMail). 11:44:14 Ignored broken message (SyncMail). 11:43:03 Ignored broken message (SyncMail). 11:42:49 Ignored broken message (SyncMail). 4613.1000 MSI x86 ) ActiveSync version : 14.0 First sync : 2014 - 08 - 05 18 : 32 Last sync : 2014 - 08 - 29 10 : 41 Total folders : 13 Synchronized folders : 11 ( 1 in progress ) Synchronized data : Emails ( 8 ) Contacts Tasks Calendars Synchronization progress : Folder : Emails Sync : Synchronizing Status : 45 % ( 24652 / 54924 ) Status : Not available WipeRequest on : not set WipeRequest by : not set Wiped on : not set Attention needed : 27 messages need attention because they could not be synchronized Broken object : 'SyncMail' ignored on ' 15:26' Information : Subject : 'R: subject' - From : ''Name surname' ' Reason : Message was causing loop ( 2 ) Item /Parent id: 9901/ f2įrom what I see in the logs I have no problems with the DoSFilter, as nginx and apache are running on the same host as Zimbra.Īny ideas what could cause this trouble? Any other hint on what I can tune in zimbra or apache to better handle big mailboxes sync? I have this in z-push-admin for the user:ĭeviceId : 8919 be26ffd74d67a4a778921b4dcff8 Device type : WindowsOutlook UserAgent : Outlook / 15.0 ( 15.0. also I haven't found errors in nginx.log so I'm not sure this is a problem, but it should to just better with 8 processes.

I had the default value of 4, now I changed the value to 8 since I have 4 cores, but I still have to check if this has any benefit. My suspect is that when outlook is started it makes a lot of connections and server is running out of nginx processes.

This means requests for /Microsoft-Server-ActiveSync are redirected to a local Apache serving zpush. I'm using z-push with zimbra's nginx proxy. When I open outlook of a VERY BIG mailbox it apparently works and start syncing, but after a while it seems stuck, and not enough the Zimbra server starts suffering and being unresponsive to all other users, even the ones using the webmail. Sadly Outlook users want ALL their mails in outlook, so I had to change SYNC_FILTERTIME_MAX to SYNC_FILTERTYPE_ALL. At least it works fine with small accounts and 3 months sync. I'm using zpush-2.1.2-1873 (backend 59.6) with outlook 2013, and so far it seemed to work fine.

Zimbra outlook email hangs