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Re: SMTP Transferred-By-Reference

2007-11-15 13:59:30

David F. Skoll writes:
Douglas Otis wrote:
Understandable. The current levels of spam, which in some cases is exceeding 99%, simply overwhelms any ability to filter all messages.

Do you have evidence to support that?

 Content filtering alone can not keep up,

Do you have evidence to support that?

If you can read German.

There was an excellent article in the magazine iX on the subject earlier this year, illustrated with a number of depressing rrdtool/mrtg graphs. Dreary reading. Very brief summary: 1. Spammers whose botnets span n hundred thousand boxes can shovel more mail onto your MXes than they can handle. 2. Sometimes they do. 3. When they do, that's no fun at all for the sysadmins on the receiving end.