On Tuesday 17 March 2020, Andrea Venturoli wrote: > > I'm now setting this explicitly and I'll see what happens. > > In fact, nothing changed. I checked my Sendmail's log just in case and didn't find any "Data format error" messages. I keep a log for 1 month. About 200K messages were received by Cyrus at this time. But it is possible that bad messages are not accepted for some signs that I consider spam tags: about 80K messages were rejected. sendmail 8.16.0.41 (but 8.15.2 was used some years ago). Cyrus IMAP 2.5.15. I use 3.0.13 on experimental server but mail traffic too small here. Can You grab bad message before reject and send it to me? -- Regards, Sergey ---- Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/ To Unsubscribe: https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus