Hello, Roelof, >From this:
totaal 16 drwxr-xr-x. 2 root root 24 5 jun 13:42 . drwxr-xr-x. 76 root root 8192 5 jun 15:26 .. -rw-r--r--. 1 postfix root 47 5 jun 13:42 smtpd.conf I believe you do not need to change owner/group of smtpd.conf; because postfix user already has access to read the file. You see, you have read+execute on the directory, and read on the file, for all users. So, postfix user *will* access and read the file. The problem is not that. Find it on another place. By the way, which is your distro? Regards! Atenciosamente, --- Fernando Maciel Souto Maior Projetos e Soluções de Tecnologia (31) 99226-9440 TIM 2017-06-05 12:58 GMT-03:00 Roelof Wobben <r.wob...@home.nl>: > Op 5-6-2017 om 16:31 schreef wilfried.es...@essignetz.de: > > Am 05.06.2017 um 14:42 schrieb Roelof Wobben: > ... > > Is the postfix user allowed to read /etc/sasl/smtpd.conf? > > At this moment, not. smtpd.conf has as owner root:root > Schould I change it to postfix:root ? > > Yes, if it's not already world readable. > > BTW: Can the postfix user traverse into /etc/sasl? > > We can see it on output of "ls -al /etc/sasl". > > Are the logs showing still the same errors? > > > Willi > > > > Changed it. > output of ls -al /etc/sasl2 > > totaal 16 > drwxr-xr-x. 2 root root 24 5 jun 13:42 . > drwxr-xr-x. 76 root root 8192 5 jun 15:26 .. > -rw-r--r--. 1 postfix root 47 5 jun 13:42 smtpd.conf > > > > And the maillogs still give this error message : > > warning : sasl authentication failure: Internal Error -4 in server.c near > line 1757 > fatal : no sasl authentication mechanisms > > Roelof > > >