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As developers implement the protocols in their applications, the email list gets cleared, and the size of your database decreases, which saves money. .High ROI A detailed understanding of email authentication for developers helps reduce the bounce-back rate, which consequently gives you better ROI. Email bounces mean a waste of sums invested in email marketing. . Reduction in Spam Complaints from Customers and Prospects In , as many as % of emails were marked as spam globally. Ideally, the spam complaints have to be less than five for every email messages sent from an account.

The email verification process flags spam messages and Job Function Email List notifies you so that you can take timely action to control this. What is SPF? Email authentication for developers starts with the understanding and implementation of SPF or Sender Policy Framework. This protocol works by asking you to create and update a list of servers permitted to send emails using your domain name. The list is added to the DNS server from where the receivers’  server is part of the list or not. All emails sent from IP addresses out of the list fail SPF email authentication.



All this requires an SPF record which is a TXT record that lets administrators enter arbitrary texts into DNS. What are SPF Record Tags? Tag Purpose Version (v) It represents the SPF versions and should be the first tag in an SPF record. mx The mx record specifies which server is responsible for accepting emails on behalf of the domain. It has an IP address and a priority value for each server for accepting messages. a It’s used when you query for an A or AAAA record in a domain having the sender’s IP address.