*mailbox*
-: The IMAP mailbox to pull messages from. Support for persistent
- message Unique Identifiers (UID) is required. (Default: `INBOX`.)
+: The IMAP mailbox ([UTF-7 encoded][RFC 2152] and unquoted) to pull
+ messages from. Support for persistent message Unique Identifiers
+ (UID) is required. (Default: `INBOX`.)
*deliver-method*
[RFC 2033], October 1996.
* J. Myers, _IMAP4 non-synchronizing literals_,
[RFC 2088], January 1997.
+ * D. Goldsmith and M. Davis,
+ _A Mail-Safe Transformation Format of Unicode_,
+ [RFC 2152], May 1997.
* B. Leiba, _IMAP4 `IDLE` command_,
[RFC 2177], June 1997.
* C. Newman, _Using TLS with IMAP, POP3 and ACAP_,
[RFC 2177]: https://tools.ietf.org/html/rfc2177
[RFC 2595]: https://tools.ietf.org/html/rfc2595
[RFC 4959]: https://tools.ietf.org/html/rfc4959
+[RFC 2152]: https://tools.ietf.org/html/rfc2152
[RFC 2088]: https://tools.ietf.org/html/rfc2088
[RFC 5321]: https://tools.ietf.org/html/rfc5321
[RFC 2033]: https://tools.ietf.org/html/rfc2033