doveadm expunge not expunging anymore

[Sami Ketola]

> On 17 Mar 2020, at 15.40, mabi <mabi at protonmail.ch> wrote:
> 
> ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
> On Tuesday, March 17, 2020 2:18 PM, Aki Tuomi <aki.tuomi at open-xchange.com> wrote:
> 
>> So doveadm fetch -u admin\\@domain.tld "mailbox date.saved" UID 130863
>> 
>> Aki
> 
> This is the ouput:
> 
> mailbox: INBOX
> date.saved: 2020-01-16 18:21:53
> 
> I think that might be the date where I have done the migration from the old to the new mailbox server...
> 

So your rsync did not preserve mail object ctimes. Dovecot uses that for internal date if correct value is not in dovecot.index.cache.

Sami