To recognize its own mails, Postage adds a couple of headers to its test mails. AbstractMailFactory takes care for adding those headers correctly.
X-James-Postage=This is a test mail sent by James Postage
X-James-Postage-Count=1158086107828-1 where "1158086107828" is constant for the whole scenario run while "1" is incremented with every test mail.
X-James-Postage-Count=PROFORMA is used for all mails in the startup phase.
Message-ID=Postage-1158086175218 where "1158086175218" is a time stamp distinguishing this mail from all others.
These headers are used for identifying, matching and validating test mails. If headers are missing, the result report can not be build properly.