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I, too, would like to know how this is done. I regularly receive messagesVanguardLH said:Yep, a blank post.
Blank body = blank post = blank mind
Since you didn't bother to explain your situation, or take the effort to
make up a story, tis likely you have a surreptitious goal, like trying
to force a recipient to notice your spam.
You don't get to control someone else's e-mail client. You don't get to
enforce priority of your e-mails over everyone else's for a recipient.
The recipient gets to decide how their e-mail client behaves. The
recipient gets to decide priority, not you.
Think about it. Would you want some spammer to do this to YOU? If what
you wanted were possible, every spammer would be using colors, like
white on bright red, huge font sizes, marquees, mouseover events, or
other HTML tricks to force the user to notice their spam above all other
e-mails, and spammers would continually try to outperform other spammers
to make you see their spam first.
You don't get to dictate priority over the recipient's wants. You don't
get to advertise in the Subject header by using anything other than
text. Your Subject will remain subdued so you can NOT interfere with
the recipient's use of their own e-mail client.