Problem with Horde "Mailbox does not support mod-sequences"

[Doug Hardie]

> On 13 February 2017, at 01:26, Luca Bertoncello <lucabert at lucabert.de> wrote:
> 
> Hi list!
> 
> I already asked about this problem about two years ago, but I couldn't solve my problem...
> 
> Now I have a new Server, with Debian 8 and Dovecot 2.2.13-12 (from Debian repositories) and Horde 5.2.13.
> 
> When I delete an E-Mail, I always get the error "Mailbox does not support mod-sequences".
> It results in having the E-Mail not moved to Trash and I must update more times the folder to see the E-Mail moved to Trash...
> 
> Could someone help me to add this support for mod-sequences?
> 

A quick search turned up:  https://dovecot.org/list/dovecot/2015-February/099674.html

Perhaps that will help.