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.
If you are able to consult with customers one-on-one, ask any new clients how they heard about you. This will be trickier if you own a restaurant or clothing store since you won’t be able to track down every customer to ask how they heard about you. In these instances, consider asking customers to take a survey on every receipt. Offer an incentive (coupon, discount, etc.) to increase the chances that people will actually fill it out.
Marketers need to authenticate their email to prove to ISPs that their messages are legitimate, helping to ensure delivery to their subscribers. Sender Policy Framework (SPF) verifies a brand’s identity; DomainKeys Identified Mail (DKIM) verifies the message wasn’t tampered with in transmission; and Domain Based Authentication Reporting and Conformance (DMARC) requires both SPF and DKIM approval in order to authenticate.
Push marketing is a proactive technique that enables e-marketers to "push" their product/service information to Web visitors or shoppers without their requesting it. Banner advertising, pop-up advertising, e-mail promotion, and spamming belong to push marketing. For instance, e-marketers can rent designated space from Internet service providers such as America Online or MSN for their banner or pop-up ads. Using animated graphics, appealing messages, and links, e-marketers try to lure visitors to their sites to buy their products or services. Many Internet users, however, find such ads annoying and employ software that blocks pop-ups and banner ads. <