Hello there, I have a tricky issue and cannot find any solution for it. The issue looks like the following: I have a postfix server which relays all emails to another mail server. The postfix server have to use AUTH PLAIN for authorization, TLS is enforfec for security. Therefore I configured postfix with cyrus sasl.
I can see that my configuration is working and cyrus generates the correct base64 string for authorization and postfix uses this too by sending the following line: AUTH PLAIN AG5zc0RTaFRYL2krc25jdjA= The receiving server response with: 500 syntax error Because of this I tested the communication manually using openssl and I was able to find the main issue, the receiving server needs to have the following dialog: (C: Postix, S: receiving instance): C: AUTH PLAIN S: 334 C: AG5zc0RTaFRYL2krc25jdjA= Is it possible to use this longer syntax by doing some changes in cyrus? Thanks for your help, Tom
