[SM-I18N] Yandex IMAP and SMTP server configuration?

[André Z. D. A. <and...@ya...>]

Has anyone around here configured IMAP/SMTP of Yandex?

I am trying to do it for me and a few friends, but I'm not sure what magic is needed:

1. what should be globally configured with ./configure script?

2. why the folder list contain weird characters below the inbox? They are:

 Entrada (26/829)                  # This word the translation of "Inbox" being set
  B?@02;5==K5
  '5@=>28:8
  !?0<
  #40;5==K5
  userFolder1
  userFolder2
   userFolder3
    subFolder3.1
  userFolder4

3. The same garbage is seen in the "Folders" SM page, in the area where we subscribe/unsubscribe to folders

4. In the "Folders" page there are several repeated errors in the Subscribe section. They read:

"
Warning: preg_match() [function.preg-match]: Unknown modifier '|' in /path/to/squirrel/folderfunctions/imap_mailbox.php on line 804
Warning: preg_match() [function.preg-match]: Unknown modifier '|' in /path/to/squirrel/folderfunctions/imap_mailbox.php on line 804
Warning: preg_match() [function.preg-match]: Unknown modifier '|' in /path/to/squirrel/folderfunctions/imap_mailbox.php on line 804
Warning: preg_match() [function.preg-match]: Unknown modifier '|' in /path/to/squirrel/folderfunctions/imap_mailbox.php on line 804
[...]
"

Setting a "Default folder prefix as character "|" does not solve. The subscribe section becomes empty (although the error disappears), and it says like: "Found no folder to subscribe" and "Found no folder to unsubscribe".

I suspect there is some encoding issues going on, but I have no clue what else I can try.

Everyone who can make suggestions or tests to try is welcome. Please say it!

Thank you,

André