Hi. I'm still on ISPConfig 3.0.5 Billing Module Rev 10. I tried to use the Mail functions in the Billing Module the first time today but no mails were sent. My /var/log/mail.err shows: Code: Nov 17 23:42:01 ### postfix/sendmail: fatal: Recipient addresses must be specified on the command line or via the -t option Nov 17 23:42:01 ### postfix/postdrop: warning: stdin: unexpected EOF in data, record type 78 length 76 Nov 17 23:42:01 ### postfix/postdrop: fatal: uid=5003: malformed input Any Idea why this is happening? How can I fix this?