IMAP proxy advertising MAILBOX-REFERRALS and confusing Pine

[Andrew Morgan]

On Wed, 12 Aug 2009, David Mayo wrote:

> We undertook the first stage of our IMAP server upgrade yesterday and
> introduced a front-end proxy running Cyrus 2.2 in front of our sole
> back-end server running Cyrus 2.2.
>
> Since the upgrade, when a Pine user sends an email, the email is sent
> fine however when Pine appends the message to the sent-mail mailbox it
> asks the user to reauthenticate. Looking at the telemetry, the proxy
> server is advertising MAILBOX-REFERRALS[1] and Pine is trying to use
> them[2] but isn't able to silently reauthenticate the user.
>
> Looking at the man pages for imapd.conf there is a useful feature
> proxyd_disable_mailbox_referrals however this was introduced in Cyrus 2.3.
>
> Does anyone have any suggestions as to how to stop the front-end proxy
> server from advertising MAILBOX-REFERRALS and/or for Pine to ignore such
> capabilities.

This was originally a patch I obtained from the folks at Portland State 
University:

   http://oregonstate.edu/~morgan/cyrus/patches/imapd-disable-referrals.patch

It does exactly what you want in cyrus 2.2.

 	Andy