decode_utf7(s)
public
Decode a string from modified UTF-7 format to UTF-8.
UTF-7 is a 7-bit encoding of Unicode [UTF7]. IMAP uses a slightly modified version of this to encode mailbox names containing non-ASCII characters; see [IMAP] section 5.1.3.
Net::IMAP does not automatically encode and decode mailbox names to and from UTF-7.