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Re: Email filtering

by scottstef (Curate)
on Apr 15, 2002 at 21:22 UTC ( #159332=note: print w/replies, xml ) Need Help??

in reply to Email filtering

Just a word of warning before you go and automate using rbl's and the such. In theory they are great, however, they do have their flaws. I have seen mail servers get black listed due to their configurations that made them look like an open relay when in fact they were not. With the RBL's, they just run a quick scan to see if a server will accept anonymous connections. They do not check to see what happens with that connection after it is received (if it is thrown out or not). This may cause you to miss some important emails from people that are incorrectly listed by rbl's. I would suggest filtering purely on content (such as see britney..., get your degree... and the such.) rather than a black hole which can incorrectly filter out email that does not meet their specifications.

"The social dynamics of the net are a direct consequence of the fact that nobody has yet developed a Remote Strangulation Protocol." -- Larry Wall

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Re: Re: Email filtering
by John M. Dlugosz (Monsignor) on Apr 25, 2002 at 21:56 UTC
    I plan on using a write-back technique where the robot sends mail back to the sender, asking to validate the address by simply replying or clicking a URL.

    So if someone who happens to have an ISP that's blacklisted by the ORB writes me a message entitled "URGENT FIX !!!" about using my shareware library to calculate low home mortgages, then it still won't be a Black Hole, but will delay to validate the sender has a proper return address and is a real person not a bulk mailer.

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[hippo]: :-D
[Eily]: you mean a dll where the SW was written in perl? That sounds unlikely
[muthusathish]: please help me regarding this
[hippo]: Easier just to go and look at the source, no?
[Eily]: mostly because perl isn't compiled in the usual sense of the meaning, you can't execute the opcodes directly, you need the perl engine
[muthusathish]: i dont have the environment too, but i need to get the logics so that i can re-wite
[Eily]: what makes you think your dll is "perl based" ?
[muthusathish]: i dont have source code too
[muthusathish]: it is used in VB 6 appln, while debugging is getting error
[hippo]: Somebody has. Ask the author.

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