Today I upgraded from Tumbleweed 20181119 to 20181126, which included an
upgrade from dovecot23-2.3.3-32.4 to dovecot23-2.3.4-34.1.  Now whenever I run
getmail, which grabs mail from my ISP's IMAP server and hands it off to my
local Dovecot IMAP server for delivery, I get the following error messages:

msg 25/29 (6757 bytes) from <torontocbm-bounce@freelists.org>, delivery error
(command deliver 4511 wrote to stderr: lda(psy,)Error:
net_connect_unix(/var/run/dovecot/stats-writer) failed: Permission denied)
Delivery error (command deliver 4513 wrote to stderr: lda(psy,)Error:
net_connect_unix(/var/run/dovecot/stats-writer) failed: Permission denied)

While Dovecot successfully delivers the mail, the error message it throws makes
getmail think that delivery was not successful, and so getmail never deletes
the message from the remote server.  So I'm ending up with lots of duplicate
copies of messages on my local machine.

I'm guessing that this is another AppArmor issue like Bug 1087753 and Bug
1088161.