Smart web developer and systems admin Mike Cardwell put together something neat that I think you'll want to check out: Email Privacy Tester . Plug in your email address, and …
DMARC (specifically, DMARC with a p=reject policy) does one thing: It makes it very difficult for somebody to use your domain in a from address without your permission. It doesn&…
Allow me to share with you my rough notes compiled during my recent configuration of email and DKIM on a new Ubuntu VPS installation. Hopefully these helpful hints will help the …
If you've ever set up catch-all domain names, that accept mail destined to any address, or set up your MTA in a way where all mail is accepted before checking to see if the r…
A few weeks ago, somebody on the Mailop list asked about an email they received. Turns out, it was a Challenge/Response spam filter. You know, one of those emails from a robot th…
