On Wed, Mar 3, 2010 at 9:22 AM, Carlos Williams <carloswill@xxxxxxxxx> wrote: > I was looking at '/var/log/mail.log' which is the default location > Postfix MTA writes everything it does to. I was sadly in that file > using Vim and deleted the last line. I didn't restore the removed line > and simply saved the file. I noticed now that the Postfix daemon no > longer writes anything to the log file since I edited it. No > permissions have changed at all. It's still in the same location and > owned by the same UID/GID. > > Code: > > -rw-r----- 1 root log 189 Mar 3 08:37 mail.log > > I can see that Postfix is however logging everything under > '/var/log/everything.log' > > Anyone know how to fix this? I am worried I broke Postfix but mail is > still flowing and I get no errors at all from Postfix. It's just not > writing to 'mail.log' any longer. I don't think Postfix writes its own log files, but uses syslog to do it. You should probably be debugging syslog-ng instead. A simple SIGHUP might fix it.