email filtering
To deal with a recent large uptick in the quantity of spam I receive (no, I don’t need drugs from Canadian; no, I don’t want to chat with Russian women over the Internet; yes, I am relatively satisfied with the size of my pen1s), I just now added a new filter rule to my incoming mail.
All the filters I’ve added to date have been effectively blacklists: emails from address X, or with subject line Y, get deleted.
Today I added a regexp filter that silently destroys all emails headed to any address that does not match the regexp
^([^t]|t[^j]|tj[^i]|tji[^c]).*
Which is to say, any emails sent to addresses that begin with the magic four letters of my initials should get through, and absolutely everything else will not.
You have been warned.

February 20th, 2008 at 2:37 pm
Why is mail sent to random addresses at your domain(s) being delivered to your mailbox in the first place?
February 20th, 2008 at 2:56 pm
You’ve been watching your catchall address all this time? Yowza. I enabled my catchall for a while for the fun of reading misdirected emails. But my spam filters couldn’t keep up either.
Caution: You have been using spam-proofing email addresses on my blog, “tjic_leeorg” or some such for a while. None of those addresses are visible to the public but you may have used others.
How about allowing upper case TJIC@ as well? I use that often.