Postmaster alias setup

[Matt Simonsen]

When testing the postmaster alias in step #7 of the testing man page, I do
not know what "use end of file, not dot, to end the message" means. I am
trying to send a message "with a completely bad packet" - I typed:

/var/qmail/bin/qmail-inject -f nonexistant <enter>
To: unknown <enter>
Subject: <testing>
<enter>
blah <enter>

>From here I did a <ctrl - c> to exit because I was not sure how to proceed.
Any help would be appreciated.

Thanks
Matt