[Dovecot] Switch from courier to dovecot

I have an courier IMAP server running. To get sib dirs working I had to rename them all to begin with a period ".".

e.g

Maildir Maildir/{cur,new,tmp} Maildir/.account1/{cur,new,tmp} Maildir/.account2/{cur,new,tmp} Maildir/.account3/{cur,new,tmp}

etc

If I uninstall Courier and install dovecot, will these "period" dirs be seen by default?

I am fairly new to this and sometimes it seems that Maildir format requirements vary a lot depending on client or server.

Thank you for your help.