Subject line: a negative "don't miss.." I've never heard of NowForum so I don't care if I miss it, so don't tell me to Register Today!
From: I've never heard of CipherCloud, Inc
Top graphic banner: "Everything as a Service" is vaguely intriguing but not specific enough
at least they got the salutation right
Clearly laid out with all the info you might need at the click of a link (if you wanted it)
Links to social media and contacting them
easy to opt out
The salutation made me search back to see when/why I started getting info from them - turns out I must have visited their booth at a conference, but I have no interest in their services. (many booths just scan the badges of all people who stop for even a moment...)
They have sent me 5 emails since June, more than monthly. This includes asking me to register for conferences which they are sponsoring.
I wonder if it is productive to send so many emails to people who are not interested in your service? This makes me think I am right not to add people to our mailing lists unless they are well qualified and interested.