Working with Qmail’s Queue
qmqtool is a great tool for viewing and changing messages in qmail’s queue. It’ll help you search for and delete spam, for instance. The FAQ has a some examples to get started with.
Entries for the ‘Spam’ Category
Relaying Qmail Through a Spam Filter
If you’re running a mail service on a web server so it can send out e-mail from contact forms, etc then you’ll want to make sure it’s relaying outbound mail through a spam filter, or it could be used to send spam if the forms get hijacked. For qmail, you just need to create /var/qmail/control/smtproutes [...]
The Good, Bad and Ugly of SEO Methods
I agree with a lot of what Derek Powazek wrote about the SEO industry in Spammers, Evildoers, and Opportunists. His main gist is that the good SEO techniques — like using tags that match the semantics of the content and setting up 301 redirects when pages move — should just be considered good development practices, and [...]
Protecting Contact Forms From Spam
I’ve had several clients complain about getting spam through their contact forms. Initially, I tried checking the referrers to make sure the comments were being submitted from a browser rather than just a bot, but that didn’t help enough. Luckily, many people have created libraries for Akismet, the anti-spam service that Wordpress uses. I setup [...]