I've sent an email to the authors a few days ago, but have not gotten a response, so I'll try it this way: In Code Listing 10.1 there is a line auth optional pam_mysql.so server=localhost db=mailsql user=mailsql but it should be auth optional pam_mysql.so host=localhost db=mailsql user=mailsql Of course, this error does only come up if your mysql server is a different machine than your mail server. Reproducible: Always Steps to Reproduce:
Indeed. This has now been fixed. Thanks for reporting!
