"\\|^x400-received:\\|^x400-mts-identifier:\\|^x400-content-type:"
"\\|^\\(resent-\\|\\)message-id:\\|^summary-line:\\|^resent-date:"
"\\|^nntp-posting-host:\\|^path:\\|^x-char.*:\\|^x-face:\\|^face:"
- "\\|^x-mailer:\\|^delivered-to:\\|^lines:\\|^mime-version:"
+ "\\|^x-mailer:\\|^delivered-to:\\|^lines:"
"\\|^content-transfer-encoding:\\|^x-coding-system:"
"\\|^return-path:\\|^errors-to:\\|^return-receipt-to:"
"\\|^x-sign:\\|^x-beenthere:\\|^x-mailman-version:\\|^x-mailman-copy:"
"\\|^precedence:\\|^list-help:\\|^list-post:\\|^list-subscribe:"
"\\|^list-id:\\|^list-unsubscribe:\\|^list-archive:"
- "\\|^content-type:\\|^content-length:"
+ "\\|^content-length:"
"\\|^x-attribution:\\|^x-disclaimer:\\|^x-trace:"
"\\|^x-complaints-to:\\|^nntp-posting-date:\\|^user-agent"
"\\|^importance:\\|^envelope-to:\\|^delivery-date"