The feasibility of email is continually threatened by spam, spoofing and phishing. Due to these persistent threats, ISP's aggressively produce an ever-increasing number of authentication strategies to fight these threats.
ISPs have turned to email authentication to produce order from the chaos. Leading authentication protocols are in place and more are proposed daily. These include, but are not limited to, the following:
Sender-ID from Microsoft
DomainKeys from Yahoo
DKIM (DomainKeys Identified Mail) from Yahoo and Cisco
There is no widely accepted standard by ISP's and each has adopted a different means of authentication. Therefore, email senders must support all authentication protocols. It is necessary to support all standards while also being prepared to support changes that will take place in the future.
Zrinity's XMS keeps you up-to-date on recent authentication protocols and makes it easy for senders to adopt these specifications to ensure on-going compliance and delivery. As new standards are added Zrinity is committed to supporting all standards so senders can easily add them to delivery applications.