- '("^Path:" "^Posting-Version:" "^Article-I.D.:" "^Expires:"
- "^Date-Received:" "^References:" "^Control:" "^Xref:" "^Lines:"
- "^Posted:" "^Relay-Version:" "^Message-ID:" "^Nf-ID:" "^Nf-From:"
- "^Approved:" "^Sender:" "^Received:" "^Mail-from:")
+ '("^Path:" "^Expires:" "^Date-Received:" "^References:" "^Xref:" "^Lines:"
+ "^Relay-Version:" "^Message-ID:" "^Approved:" "^Sender:" "^Received:"
+ "^X-UIDL:" "^MIME-Version:" "^Return-Path:" "^In-Reply-To:"
+ "^Content-Type:" "^Content-Transfer-Encoding:" "^X-WebTV-Signature:"
+ "^X-MimeOLE:" "^X-MSMail-Priority:" "^X-Priority:" "^X-Loop:"
+ "^X-Authentication-Warning:" "^X-MIME-Autoconverted:" "^X-Face:"
+ "^X-Attribution:" "^X-Originating-IP:" "^Delivered-To:"
+ "^NNTP-[-A-Za-z]+:" "^Distribution:" "^X-no-archive:" "^X-Trace:"
+ "^X-Complaints-To:" "^X-NNTP-Posting-Host:" "^X-Orig.*:"
+ "^Abuse-Reports-To:" "^Cache-Post-Path:" "^X-Article-Creation-Date:"
+ "^X-Poster:" "^X-Mail2News-Path:" "^X-Server-Date:" "^X-Cache:"
+ "^Originator:" "^X-Problems-To:" "^X-Auth-User:" "^X-Post-Time:"
+ "^X-Admin:" "^X-UID:" "^Resent-[-A-Za-z]+:" "^X-Mailing-List:"
+ "^Precedence:" "^Original-[-A-Za-z]+:" "^X-filename:" "^X-Orcpt:"
+ "^Old-Received:" "^X-Pgp-Fingerprint:" "^X-Pgp-Key-Id:"
+ "^X-Pgp-Public-Key-Url:" "^X-Auth:" "^X-From-Line:"
+ "^X-Gnus-Article-Number:" "^X-Majordomo:" "^X-Url:" "^X-Sender:"
+ "^X-Mailing-List:" "^MBOX-Line" "^Priority:" "^X-Pgp" "^X400-[-A-Za-z]+:"
+ "^Status:")