Error: Corrupted index cache file

[Sohin Vyacheslav]

11.02.2023 07:47, dovecot at ptld.com пишет:
> By not allowing the same user to access two backends concurrently.
> 
> One option and the best way is using dovecot director. However, it is 
> soon to be removed from free community dovecot.
> 
> Another way is using a proxy (example HaProxy) with sticky IP. The 
> disadvantage of sticky IP is if they are using multiple IP's such as a 
> desktop and mobile connection at the same time.

Thank you! In my configuration already uses a Dovecot director and error 
messages occurred on the backend mail servers (mentioned in option 
director_mail_servers).

By the way, I saw that in mail.log of 1st backend error messages more 
than in mail.log of 2nd backend.


-- 
Best wishes
Sohin Vyacheslav