[Dovecot] IMAP Folder permissions

Hello, Happy new year. I have a dovecot with exim installation. I am using virtual users for
mail and IMAP. When dovecot creates a folder from imap user the permissions are
rwx------ I need them to be rwxrwx---

Is there a way to change this in the configuration file ?

TIA Stuart

Stuart Gall

There are three sorts of mathematician: those that can count and those that can't.