[Alpine-info] "[MAIL FOLDER "INBOX" CLOSED DUE TO ACCESS ERROR]"

[Thomas Gramstad via Alpine-info]

The Subject: line is an error message that I get very often
in Alpine, like several times per hour:

[MAIL FOLDER "INBOX" CLOSED DUE TO ACCESS ERROR]

When this happens, in the folder I am in I can still see the 
numbered list of messages, but if I try to open a message to read 
it, there is nothing to read. I then have to quit Alpine, start 
Alpine a new, and log in to Alpine, and then I can read the 
messages.

This frequent need to quit and restart is annoying. Is there 
something I can do to prevent, or at least reduce the number of 
such incidents? Like checking something more often, or less 
often, or switch something off?

Thomas Gramstad