Mutt hangs on opening IMAP folder

[Romain JACQUET <romain.jacquet.dev@xxxxxxx>]

Hi,


I'm using mutt to read my IMAP mailbox at free.fr (a french ISP) for years.
Mutt has suddenly stop working.
Example:

  * I am using the last mercurial revision.
  * I run mutt -d 5 -f imap://trolltroll@xxxxxxxxxxxx/INBOX
  * Mutt prints "Selecting INBOX".
  * Nothing appends  and after a  longtime  (maybe 30 minutes), mutt
    prints "Connection to imap.free.fr closed" and exit.

After some investigations, I discover that mutt hangs at 
mutt_socket.c:165, mutt_socket_readchar.

My .muttdebug is:
... [nothing relevant]
4< * OK [PERMANENTFLAGS (\Answered \Flagged \Deleted \Draft \Seen)] 
Permanent flags
Getting mailbox PERMANENTFLAGS
4< * OK [UNSEEN 1] first unseen message in INBOX
4< a0004 OK [READ-WRITE] SELECT completed      *// after this mutt hangs 
on*
Connection to imap.free.fr closed
imap_cmd_step: Error reading server response.

As far as I understand, the IMAP free.fr server may have changed and 
mutt can no longer talk with it.


Thanks in advance for any help.