Sylpheed

* 3.4.0beta1 (development)

    * Safe mode (which does not load plug-ins) was added (--safe-mode).

    * The existence of destination folders are checked when creating a filter

      rule.

    * The recursion level is restricted up to 64 when scanning local mailbox

      (prevents infinite loop with symlink. Note: Linux automatically limits

      the symlink loop up to 40)

    * The labels used in POP3 remote mailbox dialog was modified.

    * POP3: do not disconnect immediately but send QUIT command on normal

      POP3 errors (prevents deleted messages appear again).

    * IMAP: "INBOX" folder became case insensitive as specified in RFC 3501.

    * IMAP: server name for cache directory is escaped now

      (fixes cache creation when using IPv6 address for server name on Windows).

    * Win32: socket timeout setting now works on Windows.