Thanks Terry!! This is a great explanation of the technology for those of us who don’t want to wade through the volumes of text on the subject or for those of us that didn’t make it to Richi’s webinar earlier this year on the topic.
- Sender Authentication Introduction
- Part 1: The Basics of Sending Email
- Part 2: Reading Email Headers
- Part 3: Checking the Received Header
- Part 4: Forward Confirmed Reverse DNS
- Part 5: More on received headers
- SPF
- SenderID
- Part 16: SenderID vs SPF
- Part 17: Hazards of SenderID and SPF
- Part 18: More Hazards
- Part 19: How Spammers evade SPF
- Part 20: Advantages of PRA vs MAIL FROM
- Part 21: Some recommendations
- Encryption
- Part 22: Introduction to encryption
- Part 23: Secret key encryption and one-way functions
- Part 24: Public key encryption
- Part 25: Digital signatures
- Part 26: DomainKeys in a nutshell
- Part 27: Public key notation in DNS
- Part 28: DomainKey headers in the message
- Part 29: Some DomainKeys examples
- Part 30: The canonicalization process
Of course, you should already be well aware of how this works if you run a mail system!! If you don’t and your running Exchange 2007, you may want to get familiar with a few cmdlets…. Test-SenderID can be used to validate incoming senderID information, Get-SenderID can be used to validate senderID information you have configured, and Set-SenderID can be used to set SenderID information for your organization.
