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Re: SORBS Contact
On Aug 9, 2006, at 8:29 PM, Robert J. Hantson wrote:
That doesn't mean to say it doesn't work for you, but don't mistake a list that'll block a mailserver for a week on the basis of one or two unsubstantiated reports as _safe_ solely because it will only block it for a week.
Depending on your demographics SpamCop may have an acceptable
false positive level, but it's not a list I advise most users to use as it
regularly lists sources of large amounts of non-spam (such as, for
example, mailservers used solely for closed-loop opt-in email).
Despite that, though, it's quite effective if you're prepared to accept
the false positive rate.
You may want to look at the CBL or XBL if you're interested in a very effective IP based blacklist with a very low level of false positives. Not zero, but really pretty low.
Pretty much all the others have levels of false positives that are bad enough that I wouldn't use them myself, though depending on the demographics of your recipients they may be acceptable to you. Using them to block mail to all recipients is likely to be problematic in most cases. Some recipients who choose to use it? Sure. As part of a scoring system? Perhaps. Blocking across all users? Probably a bad idea in most cases.