From: Eric Maquiling (eric@maquiling.org)
Date: 02/21/03-12:13:03 PM Z
On 02/21 10:05, Katharine Thayer wrote:
> On the other hand, an ISP-level filter that blocks messages with the
> subject line "Aqua Regia" might at some times be a useful feature.
Sorry for being REALLY OT here but 2 things can happen at the ISP
level. Think of them as 2 doors:
1st door
email comes in
email servers ask "what IP address did you come from?"
email server looks up the IP address
lookup says "that IP address routinely sends SPAM"
email server closes the door on that email
next mail
lookup says "that IP address is good"
email server forwards the mail to:
2nd door
another serivce
checks for the entire email for anything that might be
considered as spam
checks good
email goes to recipeient
checks bad, words like "click here now!" or "increase your ***"
email gets rejected.
This concludes our basic email server lesson for today.
(Thought I might contribute to something I actually know something
about)
You guys are super cool printmakers.
-- Eric
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