Roelof Wobben: > Op 5-6-2017 om 18:35 schreef wilfried.es...@essignetz.de: > > Internal Error -4 in server.c > > > I did already and google does not have a answer
First result with "Internal Error 4 in server.c" Postfix on CentOS 7 cannot authenticate against cyrus ... - Server Fault https://serverfault.com/.../postfix-on-centos-7-cannot-authenticate-against-cyrus-saslau... Aug 5, 2014 - ... 14:47:34 centos7-msa-test postfix/submission/smtpd[20291]: warning: SASL authentication failure: Internal Error -4 in server.c near line 1757 ... It says: "yum install cyrus-sasl-plain". Nowadays one would use "dnf". Wietse
