Configure

namespace <name> {
   mailbox <name> {
   }
}

and return from userdb

namespace/<name>/mailbox/<name>/autoexpunge=value

Ak


On 23.01.2018 11:57, Alexey Murz Korepov wrote:
I need to set autoexpunge rule only for one single user and one mailbox (mail folder), so apply it only for user alice@example.com mailbox INBOX. How can I set namespace in dovecot config, that will apply only to single user?

--
Best regards,
Alexey Murz Korepov.
Email, Jabber: murznn@gmail.com