Get my permission to send or don't send at all, please!
If I see a name in the subject line I don't recognize, I hit the junk button immediately.
If your company name is one I don't do business with or don't recognize, I hit the junk button immediately.
If your subject line promises fame, fortune and the "next best marketing tool" I hit the junk button immediately.
If you want to network with me, write me a personal email, let's talk about the value we can provide one another. I'm always open and receptive. If you just email me a social network invitation, I'll probably hit the junk button immediately.
... and please, in the name of all that is professional and responsible, take me off of your list of people to send your new social media site introductions to. I'll hit the junk button immediately.
It's a busy world out there. Unfortunately, the majority of emails I receive get sent to junk immediately and there does not seem to be an end in site.