# SMTP syntax errors logging exim -bs ehlo a.b.c auth a%b auth plain AHVzZXJ4AHNlY3JldA== auth plain AHVzZXJ4AHNlY3JldA== mail from: auth=a+b@c.d quit **** exim -bs ehlo a.b.c mail from: auth plain AHVzZXJ4AHNlY3JldA== quit ****