Thanks everyone, it may be the filtering process as mentioned. This is a Proxmox Mail Gateway running Postfix. I do see these type of errors but will look at more details based on everyone's suggestions and then report back.
2023-09-26T21:34:00.391589-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:42906 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:00.399983-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:38040 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:00.404921-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:49176 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:00.406388-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:38052 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:00.411829-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:42922 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:00.417371-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:42928 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:00.470597-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:49186 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:00.477706-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:38056 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:00.492245-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:42932 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:00.519140-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:38062 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:00.525961-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:49188 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:00.537156-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:38072 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:00.550920-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:42942 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:00.560370-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:49196 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:00.580703-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:42946 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:00.586122-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:38082 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:01.522481-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:49228 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:01.526253-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:42970 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:01.538978-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:38146 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:01.558545-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:49236 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:01.562384-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:42976 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:01.571537-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:49248 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:01.577651-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:38162 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:01.579153-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:38160 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:01.584713-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:49258 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:01.585693-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:42980 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:01.667300-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:42986 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:01.671298-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:38164 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:01.683631-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:49268 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:01.695531-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:38172 after RCPT: DATA\r\nQUITE\r\n 2023-09-26T21:34:01.707382-04:00 mgw postfix/postscreen[469237]: COMMAND PIPELINING from [208.99.44.83]:49270 after RCPT: DATA\r\nQUITE\r\n On Wed, Sep 20, 2023 at 12:42 PM Wietse Venema <wie...@porcupine.org> wrote: > Joey J via Postfix-users: > > In: DATA > > Out: 354 End data with <CR><LF>.<CR><LF> > > Out: 451 4.3.0 Error: queue file write error > > Look in Postfix logs. > > https://www.postfix.org/DEBUG_README.html#logging > > Look for obvious signs of trouble Postfix logs all failed and > successful deliveries to a logfile. > > When Postfix uses syslog logging (the default), the file is usually > called /var/log/maillog, /var/log/mail, or something similar; the > exact pathname is configured in a file called /etc/syslog.conf, > /etc/rsyslog.conf, or something similar. > > When Postfix uses its own logging system (see MAILLOG_README), the > location of the logfile is configured with the Postfix maillog_file > parameter. > > When Postfix does not receive or deliver mail, the first order of > business is to look for errors that prevent Postfix from working > properly: > > % grep -E '(warning|error|fatal|panic):' /some/log/file | more Note: > the most important message is near the BEGINNING of the output. > Error messages that come later are less useful. > > The nature of each problem is indicated as follows: > > * "panic" indicates a problem in the software itself that only a > programmer can fix. Postfix cannot proceed until this is fixed. > > * "fatal" is the result of missing files, incorrect permissions, > incorrect configuration file settings that you can fix. Postfix > cannot proceed until this is fixed. > > * "error" reports an error condition. For safety reasons, a Postfix > process will terminate when more than 13 of these happen. > > * "warning" indicates a non-fatal error. These are problems that > you may not be able to fix (such as a broken DNS server elsewhere > on the network) but may also indicate local configuration errors > that could become a problem later. > > > -- Thanks! Joey
_______________________________________________ Postfix-users mailing list -- postfix-users@postfix.org To unsubscribe send an email to postfix-users-le...@postfix.org
