I found some errors in mail.err1 and 3
Mar 28 14:16:28 minijobb amavis[6145]: (06145-01) (!!)TROUBLE in process_request: connect_to_sql: unable to connect to any dataset at (eval 100) line 252.
Mar 6 05:58:14 148 postfix/trivial-rewrite[28962]: error: unsupported dictionary type: mysql
Mar 6 05:58:14 148 postfix/trivial-rewrite[28962]: error: unsupported dictionary type: mysql
Mar 6 06:00:11 148 postfix/cleanup[28979]: error: unsupported dictionary type: mysql