Fighting Comment Spams – There Gotta Be A Better Way

Tag: , , , — June 7, 2008 @ 11:35 am Comments 8

People usually associate spams with unsolicited commercial emails that try to either sell you the “little blue pill”, or Nigerians phishing for your bank account details. There are many techniques fighting email spams, either at the server side or at your email client. However if you run a blog or a forum on the [...]

Error: 451 Could not complete sender verify callout

Tag: — November 17, 2007 @ 10:56 am Comments 6

My typical set up — 2 email servers for all of my domains. One primary with local delivery, and another one as a backup MX. Then for all my other servers, MTA is installed but either bound only to localhost, or external access to port 25 firewalled. Emails will be sent out from these servers [...]

Greylisting Spams with Postfix + Gld

Tag: , , , — August 30, 2006 @ 7:55 am Comments 12

If you have an email address for a while, you’ll know that “spams” are almost inevitable. Once the email address has been used, spams will find their way there sooner or later. Combating email spams has also become one of the most researched topics these days.
Greylisting is a relatively new method to use against spams, [...]