Sharma, Ashish: > Hi, > > I have a Postfix mail receiving server, on this I am using sid-milter > (found at http://sourceforge.net/projects/sid-milter/ got from > http://www.postfix.org/addon.html) tool to validate senderID and > SPF. > > Here the problem is for mail servers that implement Sender-ID, > mail servers that are implementing sender-ID and having their > mails sent via Blackberry are having their sender-ID (sender-id=neutral) > not getting verified on my postfix end.
According to the Microsoft website: How Sender ID Works Sender ID seeks to verify that every e-mail message originates from the Internet domain from which it claims to have been sent. This is accomplished by checking the address of the server that sent the mail against a registered list of servers that the domain owner has authorized to send e-mail. In other words, it "works" only when the domain owner adds blackberry's IP addresses to their SenderID authorization record. http://www.microsoft.com/mscorp/safety/technologies/senderid/overview.mspx Wietse