Hi Scott, Scott Kitterman wrote: > > procmail itself has last been updated with the dist-upgrade of that box > > from Jessie to Stretch. [...] > Since we've failed to find a likely culprit in postfix and these are procmail > errors relating possibly to file sytem issues, is there any chance of a > problem > in that direction?
Since downgrading of postfix fixed that issue, from my point of view, the culprit is at least triggered by a change in postfix. The actual bug might me somewhere else, e.g. in procmail, yes. > >From procmail(1): > > Error while writing to "x" > Nonexistent subdirectory, no write permission, pipe died or disk full. Unless postfix calls procmail with a different user in 3.1.9 and 3.1.12, we IMHO definitely can say that it's not a "no write permission" issue. Since mails to other mailboxes in the same directory were delivered, we can clearly say that "Nonexistent subdirectory" is not the cause either. Regarding "disk full": I just checked the monitoring and mount points: * Both, /var/mail and /home/abe/Mail are on the root partition (it's a VM) and according to my monitoring, the root partition was around 65% full on 29th of April when I reported this. See the attached screenshot. * AFAIK procmail just appends new mails to an mbox-format mail folder, so the size of the folder should actually not matter, just the size of the appended mail. Anyway, quite a lot might have happenend since I reported the issue and the RRD-based monitoring logs from back then are not that fine granulate anymore, so that I will try to upgrade again and see if the issue arrises again. In that case, I happily offer more precise debugging information than I still have from end of April. Regards, Axel -- ,''`. | Axel Beckert <a...@debian.org>, https://people.debian.org/~abe/ : :' : | Debian Developer, ftp.ch.debian.org Admin `. `' | 4096R: 2517 B724 C5F6 CA99 5329 6E61 2FF9 CD59 6126 16B5 `- | 1024D: F067 EA27 26B9 C3FC 1486 202E C09E 1D89 9593 0EDE