Email authentication 

Our complete ESP MTA infrastucture (so both Email marketing platform and SMTP Gateway services) is equipped with all industry standard authentication algorithms : SPF - SenderID - DKIM. We do not continue to support DK authentication since it is almost completely made redundant by DKIM authentication.

What does this mean to you as a customer ? Well, email authentication helps your campaigns look "trusted". It helps you get into the inbox of your recipient and help you establish a trusted reputation with your subscribers.
You could say that it is a way to prove that you actually are who you claim to be, both to your subscribers as well as the ISP's you sent the mail to (Eg Yahoo.COM / Hotmail.COM / Gmail.COM ...). These advanced mechanisms are implemented within our MTA's and are automatically "added" when sending out email campaigns.  



For more technical information about the different authentication methods you can visit


Sender ID : Micirosoft SenderID homepage
SPF : The open SPF project
DKIM : DomainKeys Identified Mail homepage