/8 blocks

i now have three /8 blocks in my email filters. in the UK, in germany, and in japan.

the “standard” email filters, built on “and/or” and “contains/does not contain”, break down when you’re dealing with 16.75 MILLION addresses.

they break down because you can’t just filter on 25. which appears in the middle and end of IP addresses, in message ID numbers, and, occaisionally, in the body of the message.

the result is A LOT of false positives: email which i can’t forward to the correct recipient, because it will get filtered AGAIN

which is quite annoying. 😒

so, with the help of my friend robert, i built a regular expression to handle it:


finds a white space character followed by “25.”, followed by three repititions of one to three digits, interspersed by periods, followed by another white space character.

technically, this regex could be adapted to accomodate any IP address, which means that, theoretically, i have a whole new, easier, and faster method of processing spam. 😈

the next step is to learn how to search for a specific range of digits… 😈

oy 😒

this morning i added a second /8 block to my email filters.

for those of you wondering what i’m talking about, a /8 block is the largest block of IP addresses allocated by the IANA.

16,777,216 individual IP addresses.

my first filtered /8 block was in japan. my second one was in germany.

and i STILL get spam from japan and from germany. 😒

it doesn’t seem like it was that long ago that spam was something in a monty python skit, and before that, it was a canned meat byproduct.

it’s not even UCE any longer, because most of it is devoted to scams of one kind or another. actual, commercial email is a tiny fraction of the volumes of script-generated spam, these days.

spam times 16,777,216²… which is a number so large my scientific calculator chokes on it… which is to say, it says 2.81474976711e+14 rather than giving me a number i can understand. 😒


no, not Chopp’s, chops… the signature stamps that are traditionally used on chinese artwork.

i got some.

chops – one says “SHALEMENDUO” and the other one says “RONG”

the one on the left says 沙了門多 which is prounounced SHĀ-LE-MÉN-DUŌ which is the closest the guy could get to “SALAMANDIR”.

SHĀ-LE-MÉN-DUŌ means “SAND-UP-DOOR-MANY”, which is, essentially, meaningless. it’s just a name chop.

the one on the right says 蝾 which is pronounced RÓNG, and it means “SALAMANDER”.

and i think it’s kind of interesting that the word for “SALAMANDER” is RÓNG

i made a chop several years ago, that says “CHIGAU” which means “DIFFERENT” or “WRONG”… but it’s backwards.

knock wood…

for the first time in a VERY long time, i booted up my computer, checked my email, and did NOT have at least 10 “bitcoin-porn-scam-spam” messages in my spam folder…

in fact, i had NO “bitcoin-porn-scam-spam” messages in my spam folder… or anywhere else…

there was spam in my spam folder, but no “bitcoin-porn-scam-spam” messages.

maybe this is a good sign.

ETA: not as good a sign as i would have hoped, but on the plus side, i now have blocks on more of uzbekistan, kazakhstan, bangladesh, and south africa than i did before.

oh well… 🤷

the enlightened rantings of a brain damaged freak