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yahoo email

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is blacklisted by spamcop.
went to reply to a peer contact reply this am and got a fatal error, blacklisted by spamcop.

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by dawgit

or just that person? very interesting. I've been having problems with yahoo also, I thought it was just because I was in Germany. (2 yahoo accs in .de and 2 in .com, yes, it does make a difference) if you want, e-mail me to test it @ (almost oops) PM me, and I'll give you my @yahoo e-mail add.
(eddited to add: when I get up in the morn.)

by oz_media

Most free online accounts are blacklisted by someone. That's one reason our company doesn't accept dealer apps from people with free domains.

Blacklisting SHOULD only be a very small part of your spam filtering though, RBLS are so far from reliable it's not funny. I used to use a few RBLs as a third check in a spam system I setup, but only with VERY low weights to it so as not to topple good mail.

by apotheon

Blacklisting services are just a bad idea in general. They tend to result in an unacceptably high incidence of false positives.

by oz_media

As a lightly weighted (second or third) check on a reliable antispam system, they are OKAY but need ot be carefully weighted and monitored for false positives.

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