Hello, I'm trying to auth sasl using another smtp server's sasl auth.
scenario is as shown below: [client] -> [postfix_as_email_gateway with auth plain] -> [another smtp server sasl auth plain enabled] postfix has no userdb & passdb. Is it possible that postfix connect to another smtp server and validate auth plain user credentials? Basically i want that postfix make auth against another server's smtp auth. What is the right way to do this configuration? Regards