X(returnpath, "Return-Path:")
X(received, "Received:")
X(replyto, "Reply-To:")
X(Fromm, "From:")
X(sender, "Sender:")
X(res_replyto, "Resent-Reply-To:")
X(res_from, "Resent-From:")
X(res_sender, "Resent-Sender:")
X(date, "Date:")
X(res_date, "Resent-Date:")
X(To, "To:")
X(res_to, "Resent-To:")
X(cc, "Cc:")
X(res_cc, "Resent-Cc:")
X(bcc, "Bcc:")
X(res_bcc, "Resent-Bcc:")
X(messageid, "Message-ID:")
X(res_messageid, "Resent-Message-ID:")
X(inreplyto, "In-Reply-To:")
X(references, "References:")
X(keywords, "Keywords:")
X(subject, "Subject:")
X(scomments, "Comments:")
X(ncrypted, "Encrypted:")
X(notrequpdelry, "Notice-Requested-Upon-Delivery-To:")
X(finrecipient, "Final-Recipient:")
X(remmta, "Remote-MTA:")
X(diagcode, "Diagnostic-Code:")
X(lastattemptdate, "Last-Attempt-Date:")
X(errorsto, "Errors-To:")
X(retreceiptto, "Return-Receipt-To:")
X(precedence, "Precedence:")
X(fullname, "Full-Name:")
X(postddate, "Posted-Date:")
X(recvddate, "Received-Date:")
X(mssage, "Message:")
X(text, "Text:")
X(via, "Via:")
X(apparentlyto, "Apparently-To:")
X(apresto, "Apparently-Resent-To:")
X(dliveredto, "Delivered-To:")
X(mlinglist, "Mailing-List:")
X(autforwarded, "Autoforwarded:")
X(cntidentifier, "Content-Identifier:")
X(conversion, "Conversion:")
X(convwithloss, "Conversion-With-Loss:")
X(deldate, "Delivery-Date:")
X(dx4ipmsextensions, "Discarded-X400-IPMS-Extensions:")
X(dx4mtsextensions, "Discarded-X400-MTS-Extensions:")
X(dlexpansionhistory, "DL-Expansion-History:")
X(defdelivery, "Deferred-Delivery:")
X(expirydate, "Expiry-Date:")
X(importance, "Importance:")
X(incompletecopy, "Incomplete-Copy:")
X(language, "Language:")
X(latdeliverytime, "Latest-Delivery-Time:")
X(msgtype, "Message-Type:")
X(obsoletes, "Obsoletes:")
X(supersedes, "Supersedes:")
X(orgencodedinfts, "Original-Encoded-Information-Types:")
X(orgnreturnaddress, "Originator-Return-Address:")
X(priority, "Priority:")
X(replyby, "Reply-By:")
X(reqdeliverymethod, "Requested-Delivery-Method:")
X(sensitivity, "Sensitivity:")
X(x400contenttype, "X400-Content-Type:")
X(x400mtsidentifier, "X400-MTS-Identifier:")
X(x400originator, "X400-Originator:")
X(x400received, "X400-Received:")
X(x400rcipients, "X400-Recipients:")
X(x400trace, "X400-Trace:")
X(altrecipient, "Alternate-Recipient:")
X(prevnondeliveryrep, "Prevent-Nondelivery-Report:")
X(gendeliveryrep, "Generate-Delivery-Report:")
X(discloserecipients, "Disclose-Recipients:")
X(cntreturn, "Content-Return:")
X(autsubmitted, "Auto-Submitted:")
X(ppwarning, "PP-Warning:")
X(fcc, "Fcc:")
X(resent, "Resent:")
X(forwarded, "Forwarded:")
X(replied, "Replied:")
X(article, "Article:")
X(path, "Path:")
X(summary, "Summary:")
X(organisation, "Organisation:")
X(aorganization, "Organization:")
X(newsgroups, "Newsgroups:")
X(followupto, "Followup-To:")
X(approved, "Approved:")
X(lines, "Lines:")
X(expires, "Expires:")
X(control, "Control:")
X(distribution, "Distribution:")
X(xref, "Xref:")
X(originator, "Originator:")
X(nntppostinghost, "NNTP-Posting-Host:")
X(submittedby, "Submitted-by:")
X(postdto, "Posted-To:")
X(mailcopiesto, "Mail-Copies-To:")
X(title, "Title:")
X(aRticleid, "Article-I.D.:")
X(posted, "Posted:")
X(relayversion, "Relay-Version:")
X(sentby, "Sent-By:")
X(cnttype, "Content-Type:")
X(encoding, "Encoding:")
X(cntmd5, "Content-MD5:")
X(mimeversion, "MIME-Version:")
X(cnttransferenc, "Content-Transfer-Encoding:")
X(cntid, "Content-ID:")
X(cntdescription, "Content-Description:")
X(cntdisposition, "Content-Disposition:")
X(accept, "Accept:")
X(spublic, "Public:")
X(allow, "Allow:")
X(lastmodified, "Last-Modified:")
X(uri, "URI:")
X(vversion, "Version:")
X(derivedfrom, "Derived-From:")
X(cntlanguage, "Content-Language:")
X(cost, "Cost:")
X(srver, "Server:")
X(wwwlink, "WWW-Link:")
X(acknowledgeto, "Acknowledge-To:")
X(transportoptions, "Transport-Options:")
X(defltoptions, "Default-Options:")
X(cntlength, "Content-Length:")
X(rference, "Reference:")
X(autoforwardedfrom, "Auto-Forwarded-From:")
X(autofcount, "Auto-Forward-Count:")
X(endofheader, "End-of-Header:")
X(orgafrom, "Original-From:")
X(orgato, "Original-To:")
X(orgacc, "Original-Cc:")
X(orgaforwfrom, "Original-Auto-Forwarded-From:")
X(orgdate, "Original-Date:")
X(notdeliveredto, "Not-Delivered-To:")
X(reportversion, "Report-Version:")
X(orgreceived, "Original-Received:")
X(status, "Status:")
X(mailfrom, "Mail-from:")
X(retrreqsted, "Return-Receipt-Requested:")
X(mrreceived, "MR-Received:")
X(apmesgid, "App-Message-ID:")
X(hopcount, "Hop-count:")
X(fromwarning, "From-warning:")
X(reqremailingto, "Request-Remailing-To:")
X(anonsendto, "Anon-Send-To:")
X(latenttime, "Latent-Time:")
X(cutmarks, "Cutmarks:")
X(postto, "Post-To:")
X(anonpostto, "Anon-Post-To:")
X(encrkey, "Encrypt-Key:")
X(readreceiptto, "Read-Receipt-To:")
X(fakesender, "Fake-Sender:")
X(envelopeto, "Envelope-To:")