There are so many techniques and so much to know about fighting SPAM. What widely used techniques and technologies are available to Administrator, Domain Owners, and End Users to help keep the junk out of our inboxes?
We're looking for an answer that covers different tech from various angles.
Due to a growing problem with spammers in the forums, we've had to tighten down the signup and posting process. All signups will now have to be admin approved if you want to join. I know this is a bit more of a hassle, but blame the spammers and their garbage. They're the root ca ...
I am currently classifying spam by computing a spam score (custom SMTP implementation).
I compute the spam score like this:
The user has manually blacklisted the IP/Address?. Increase score by 100.
The user has manually whitelisted the IP/Address?. Decrease score by 100.
Is it DNS blocklisted)? Increase score by 3.
Has it a valid DKIM signature? Decrease score by 1.
Has it a valid SPF record?