I am using courier-imap 4.0.3 and 4.1 (on different servers). In both cases
I am encountering a problem with mail that arrives with the following
IMAP just reports an error to the web client and refuses to open the mailbox
(unfortunately, I don't have access to the client code so I can only look at
this problem from the perspective of the IMAP server)
If I change the value from 'normal' to a numeric, such as '1', everything
These mails are only arriving from a few identified sites. I want to contact
them and explain the difficulty we are having, but I am not certain that the
problem is not on our end and I don't want to waste their time or dilute our
reputation. Can somebody point me to some comprehensive documentation on
this header (an RFC?)? Google has so far failed me.
Or better yet an explanation of the circumstances I am witnessing and the
correct resolution, whether at our end or the sending sites?