DomainKeys_DKIM

Created by Yahoo!, DomainKeys/DKIM is an authentication scheme that signs messages based on the "from" header and a DNS (Domain Name Server) record maintained by your DNS servers. For example, if your company's domain name is registered with GoDaddy.com there's a good chance your DNS is also hosted with GoDaddy.com. To keep it simple, a DNS is a set of rules and parameters for your domain name. Since your DNS is managed by you and hosted inside a secure area (such as GoDaddy.com) it's a secure way to prove the "from" address originated from the correct mail servers.
DomainKeys/DKIM validates emails using two security keys. The keys encrypt messages before delivery and validate the message at delivery time. DKIM and DomainKeys are very similar; however, DKIM was created by several companies to enhance DomainKeys. Today, major ISPs such as Google (@gmail.com) and Yahoo! (@yahoo.com) use DKIM.
Benefits of using DomainKeys/DKIM:

It allows the originating domain of an e-mail to be positively identified, allowing domain-based blacklists and white lists to be more effective. This is also likely to make phishing attacks easier to detect.
It allows forged e-mail messages to be discarded on sight, either by end-user e-mail software (mail user agents), or by ISPs' mail transfer agents.
It allows abusive domain owners to be tracked more easily.
It allows a great reduction in abuse desk work for DKIM-enabled domains if e-mail receivers use the DKIM system to automatically drop forged e-mail messages claiming to be from that domain.
The domain owner can then focus their abuse team energies on their own users who actually are abusing their use of that domain.

Lead Liaison uses a premier email marketing engine from Port25 which enables authentication using DomainKeys/DKIM. Lead Liaison will completely configure DomainKeys/DKIM for you. No setup is required on your part. Your Lead Liaison Customer Success Representative will set this up.