Comment 3 for bug 1710808

I'm still weighing my options and may go with the PPA dovecot. I'm not able to evaluate the regression potential for the fix. For reference, here are my findings:

Bug may cause direct loss of user data. If user has active sieve-script with both vacation extension and keep action (implicit or explicit), the keep action part will lead LMTP delivery to crash:

Aug 17 13:41:38 XXXX dovecot: lmtp(XXXXX): Fatal: master: service(lmtp): child 10177 killed with signal 11 (core dumped)

Local (keep) copy will not be delivered. If sieve script has redirect-action, that'll work.