Send the email. Once you've uploaded the contacts that you want to send the email to, it's time to send the email to the list. Go over the recipients one more time before sending the email and then send it out. Another option that you have is to schedule the blast to go out at a later date and time. This is a great idea if you may have to make last-minute revisions or want to choose a specific time to send it out.
Another collection method happens when list vendors buy emails lists from industry trade shows (or other events) where people give their info during the registration process. This is not the same thing as folks who signed up with you, directly, at your trade show booth! This is where list vendors purchase the entire registration list, from the trade show, itself. https://c1.sfdcstatic.com/content/dam/web/en_us/www/images/marketing-cloud/hub/The%20Do%27s%20and%20Don%27ts%20of%20Crafting%20Effective%20Email%20Marketing%20Campaigns/dos-donts-email-marketing-1.jpg
Just an Idea as a facebook/social friends request is slightly different than a push to read my spam email and less intrusive. the prospect has the choice and through this decision you can pretty much ascertain they are looking for what you are offering or interested in the targeted keywords your profile centres around- when you are friends start a conversation and follow up.
Note: If you want to attach additional files, such as a .pdf, we recommend that you store these files on a cloud storage service, such as Dropbox or Google Drive, and linking to these files within your blast. We do not support file attachments to an email blast as these file types tend to be larger, increasing your chances of triggering spam filters and preventing your blast from reaching your recipients.