Hello,
Certifying e-mail is when a company pays to be on a list of companies with a 3rd party that declare themselves to not be spammers. Their e-mail is then allowed to bypass many ISP spam filters. The certified e-mail service requires that they make a deposit up front. If they spam then they lose the deposit. The goal is to make it expensive for spammers to spam via certified e-mail and therefore not worth the effort to try and get around that service. A secondary goal is for you to have confidence that any certified e-mail that you receive is from who it says it is from, and that it is not a spam, virus, or phishing attempt.
-Raymond
Certifying e-mail is when a company pays to be on a list of companies with a 3rd party that declare themselves to not be spammers. Their e-mail is then allowed to bypass many ISP spam filters. The certified e-mail service requires that they make a deposit up front. If they spam then they lose the deposit. The goal is to make it expensive for spammers to spam via certified e-mail and therefore not worth the effort to try and get around that service. A secondary goal is for you to have confidence that any certified e-mail that you receive is from who it says it is from, and that it is not a spam, virus, or phishing attempt.
-Raymond