Mutt: rename IMAP folder

The imap_list_subscribed option may give you what you want, albeit in a roundabout way. From the documentation:

This variable configures whether IMAP folder browsing will look for only subscribed folders or all folders. This can be toggled in the IMAP browser with the function.

If set to no (the default), it will not check subscription status and will instead display all folders on the server (all of those returned by a LIST command).

If you're not happy with that and want the folders to be subscribed to as well, a better approach may be to script a CLI tool (much like you use imapfilter). The easiest may be curl, which supports raw IMAP commands. Simply fetch a list of folders (using LIST) and then subscribe to them (SUBSCRIBE).

It's a little hard to see what you are trying to do, but are you by any chance looking for the $spoolfile variable/configuration setting in a global context?

I'm not sure how it interacts with Mutt's IMAP support, but it allows you to set the folder which will be opened by default when Mutt is started.

It looks like you set it in the account folder-hooks, but you'd need to set it outside of those in order for it to apply before the folder-hook folder is entered.

Try adding the following to the end of your ~/.muttrc, and see if it helps:

set spoolfile="imaps://hobbestigrou@domain.com@imap.gmail.com:993/INBOX"