PMDF System Manager's Guide


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2.3.4.49 Strip illegal blank recipient headers (dropblank)

In RFC 822 (Internet) messages, any To:, Resent-To:, Cc:, or Resent-Cc: header is required to contain at least one address---such a header may not have a blank value. Nevertheless, some mailers may emit such illegal headers. The dropblank channel keyword, if specified on a source channel, causes PMDF to strip any such illegal blank headers from incoming messages.


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