Generally in old fashioned days, messages are conveyed one to one. But now a days using email marketing as a broadcasting channel messages are conveyed from one to many (tens, hundreds, thousands and so on). Again this number is also limited by ESP's to a certain extent, to improve service and security. Gmail and Yahoo limit their numbers because, you need to get prior permission for sending your newsletter to their clients and you need to tell them for what they are receiving your email for yo...

Communication is a vast subject to discuss about. In great old days, one to one communication - where a message is conveyed only between two persons, later letters, land phones, mobiles and now emails. Technology has made people to live more comfortably. Nowadays emails are the best communication channel where a message is conveyed from one to many - nearly ten, hundreds, thousands and even more. But again this number is limited by giant ISPs like Gmail, Yahoo and Hotmail to improve their servi...

Yahoo has changed its DMARC policy of its domain, it has adopted 'p=reject' policy. All the DMARC compliant mail receivers inclusive of Yahoo, AOL and Gmail are rejecting or bouncing an email that comes from @yahoo.com but not from its domain. Any email that is devoid of proper DKIM and SPF alignments are tend to get rejected. Using a public domain in the sender place is not a good sign for legitimate email marketers. DMARC authentication policies are getting popular to eradicate the issues a...