On Tue, Oct 13, 2015 at 11:51:50AM -0400, Phil Stracchino wrote: > Oct 3 14:48:23 epsilon3 postfix/smtpd[7639]: connect from > localhost[127.0.0.1] > Oct 3 14:48:23 epsilon3 dspam[7638]: Got error 500 in response to RCPT > TO: 500 5.5.2 Error: bad UTF-8 syntax^M > Oct 3 14:48:23 epsilon3 postfix/smtpd[7639]: disconnect from > localhost[127.0.0.1] helo=1 mail=1 quit=1 commands=3 > > Failure consumes the message, so a limited supply of false positives > badly limits ability to test and troubleshoot the problem.
Well, the code that produces that error is not active with smtputf_enable = no: if (var_smtputf8_enable && valid_utf8_string(STR(state->buffer), LEN(state->buffer)) == 0) { state->error_mask |= MAIL_ERROR_PROTOCOL; smtpd_chat_reply(state, "500 5.5.2 Error: bad UTF-8 syntax"); state->error_count++; continue; } so there's no need for any downgrade to 2.11. -- Viktor.