In my personal time research following the mission envisaged here, I found some very interesting and easy to use tools that are effective in combatting spam. We would here enlist a few of them over here:
These need a bit of configuration on the MX or SPF records on the web or the email server on the domain and then on the domain would be qualified for the participating domains. This effectively reduces the intensity of spam, reduces the acuteness of the phishing effect.
During the course of research, I also found an interesting acronym for Spam. Spam is not actually a word and originated as an acronym 'Simultaneusly Posted Advertising Message'. Perhaps while in the Internet Age, we mostly treat only unsolicited emails as spam, even telemarketing calls fall under the banner of spam.