I'm constantly getting this error log:
https://gist.githubusercontent.com/andrewkm/1c4e5bc0e2554b21f4755366f4bf6f13/raw/acaeb471f4c4752c79e48217c6febae185eefdd4/gistfile1.txt
whenever users try to send mail. Currently the MTA is sendmail, but it also occurs with postfix.
For a bit of...
