[horde] ActiveSync email vs IMAP email

Tom Seeley horde at tomseeley.co.uk
Mon Feb 4 15:04:15 UTC 2013

Quoting Michael J Rubinsky <mrubinsk at horde.org>:

> As explained on the wiki, the only thing that triggers Horde to tell  
> the AS email client to break the PING or looping SYNC is the arrival  
> of a new email in a pushed mailbox. This means that flag changes or  
> expunging messages, alone, will not cause the client to refresh.  
> Once triggered, however, all changes are synched. Manually  
> refreshing the mailbox will also cause all changes to be synched.

This (including the wiki) explains a behaviour I had also seen, ie  
that deletions on the AS device seemed to sync up, but deletions on  
imp didn't sync down (ie I hadn't "purged").

If anybody is interested, setting imp to use a trash mailbox seems to  
correctly simulate the behaviour of an Exchange server.  That is to  
say that it causes messages deleted in imp to be deleted (removed)  
from the AS device at the next refresh (according to the rules  
described above).



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