Field notes and occasional musings by Peter on Stuff that happens, from a free software perspective, mainly OpenBSD, FreeBSD.
Field notes and occasional musings by Peter on Stuff that happens, from a free software perspective, mainly OpenBSD, FreeBSD.
In order to keep you entertained while I work on a new edition of The Book of PF , I dug deep in the archives for material you might enjoy r...
If you want to hurt spammers, you can get away with maintaining a list of domains you want to receive mail for in your spamd.allo...
Peter N. M. Hansteen Making life harder for spammers does not necessarily require a lot of effort, if done correctly. Here are a few ...
© 2025 Peter N. M. Hansteen With the imaginary friends , also known as spamtraps , now more numerous than the inhabitants of their vir...
Image credit: the OpenSMTPD project © 2026 Peter N. M. Hansteen The SMTP mail server for the 21st century and onwards is Op...