Re: Spamcop flagged a number of users from MSN as 'spam' ?

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Andy David - Exchange MVP <adavid@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
wrote:

>On Sat, 14 May 2005 20:38:15 -0700, "Magoo" <nospammagoo@xxxxxxxxxxx>
>wrote:
>
>>Thanks a lot Rich. That's the motive I said "obviously MSN is not in the
>>spam list". I mean, given the number of MSN, I doubt the entire domain would
>>be have been identified as spam. If I understand correctly, spamcop flags
>>the IP addresses of servers.
>
> Yes, but as Rich noted, do not drop mail based simply beause a
>mail server is listed. I have personal experience with SPAMCOP listing
>the ip address of a large financial insitution I worked for simply
>because spoofed email would NDR to one of their servers. A lot of our
>clients used SPAMCOP and dropped our messages.

What? No white lists? You can't do effective spam filtering without
them!

>Even SPAMCOP themselves
>recommend that you do not use their database to drop mail as you will
>block legitimate mail and not even know it.

So do all the other DNS RBLs. But I suspect that's to deflect the
"you're blocking XXXXXXX mail!" complaints. Of course the RBL's don't
block the mail, but people sure think they do!

>I dont how you sold RBLs
>to your management, but if you told them that you may drop legitimate
>mail and may be dropping it now, I suspect it would not go over so
>well.

Depends on who's selling and who's listening. :P

--
Rich Matheisen
MCSE+I, Exchange MVP
MS Exchange FAQ at http://www.swinc.com/resource/exch_faq.htm
.

Relevant Pages

  • Re: Spamcop flagged a number of users from MSN as spam ?
    ... I mean, given the number of MSN, I doubt the entire domain would ... >be have been identified as spam. ... I have personal experience with SPAMCOP listing ... because spoofed email would NDR to one of their servers. ...
    (microsoft.public.exchange.admin)
  • Re: Spamcop flagged a number of users from MSN as spam ?
    ... >>Thanks a lot Rich. ... >>be have been identified as spam. ... I have personal experience with SPAMCOP listing ... > because spoofed email would NDR to one of their servers. ...
    (microsoft.public.exchange.admin)
  • Re: Spamcop flagged a number of users from MSN as spam ?
    ... Thanks a lot Rich. ... I mean, given the number of MSN, I doubt the entire domain would ... be have been identified as spam. ... If I understand correctly, spamcop flags ...
    (microsoft.public.exchange.admin)
  • Re: about addresses and spam block
    ... Now the ISP is the middle part, ... should show up that heavily on the spam radar either. ... > Spamcop is one of several services with compiles lists of suspect IP ... > addresses that a postmaster can use to filter out suspected spam. ...
    (rec.crafts.beads)
  • Re: about addresses and spam block
    ... The thing you have to remember is that computers are really, really stupid. ... started rejecting emails to my daughters and best friend who were AOL ... > should show up that heavily on the spam radar either. ... >> Spamcop is one of several services with compiles lists of suspect IP ...
    (rec.crafts.beads)