Interestingly enough, since that discussion started I see a significant increase in incoming mails for recipient addresses starting with a pipe character. This was very rare in the past: looking back through the logs I found just a small series on 2007-07-13 and three isolated attempts in September and December. But since 2008-04-18, there are systematically several delivery attempts per day to addresses formed by prefixing a valid mail address on the server with '|'.
Coincidence? -- Tilman Schmidt Phoenix Software GmbH 53227 Bonn, Germany
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