Steps to increase max message size for ActiveSync devices

Revision as of 13:53, 17 April 2020 by Shanxt (talk | contribs)

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   KB 23358        Last updated on 2020-04-17  

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=Increase max message size for ActiveSync devices= 


ActiveSync devices downloads only 7MB starting part of a message. OR Outlook with EAS configuration downloads only starting 7MB part of large messages.


Bydefault ActiveSync device are allowed to download 10MB size messages. There is a separate attribute "zimbraMobileMaxMessageSize" available to control max message size for ActiveSync devices.

With the help of following commands we can change/increase default limit.

su - zimbra
zmprov mcf zimbraMobileMaxMessageSize "31457280"            #Example to set limit to 30mb. 
zmmailboxdctl restart  

Submitted by: Heera Singh Koranga
Verified Against: ZCS 8.8.15 Date Created: 2020-04-13
Article ID: Date Modified: 2020-04-17

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