Email Service Provider CoalitionWelcome to the SenderID/SPF/DomainKeys Test Server. SenderID and DomainKeys were developed to prevent email address forgery and to identify spam, worms, and viruses. This server allows you to check the format of any DomainKey, SenderID or SPF records published by your domain and to see the result of these authentication checks on any message you send to it. About SenderID & SPF Domain owners
