Other party is missing our mails. In Audit Log status is Delivery: Success. The other party is using qmail system. They are asking me to deliver them "qp" number as a proof of delivery. "qp" is included in SMTP response, for example:
250 ok 1434375340 qp 13374
It would be very useful if I could see related SMTP answers in Audit Log. Other case I have to capture TCP packets to catch SMTP answers.
