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-rw-r--r--lisp/mail/rmail.el2
1 files changed, 1 insertions, 1 deletions
diff --git a/lisp/mail/rmail.el b/lisp/mail/rmail.el
index 0ee6ce10f16..346e36a1bf0 100644
--- a/lisp/mail/rmail.el
+++ b/lisp/mail/rmail.el
@@ -124,7 +124,7 @@ value is the user's name.)
It is useful to set this variable in the site customization file.")
;;;###autoload
-(defcustom rmail-ignored-headers "^via:\\|^mail-from:\\|^origin:\\|^status:\\|^received:\\|^x400-originator:\\|^x400-recipients:\\|^x400-received:\\|^x400-mts-identifier:\\|^x400-content-type:\\|^\\(resent-\\|\\)message-id:\\|^summary-line:\\|^resent-date:\\|^nntp-posting-host:\\|^path:\\|^x-char.*:\\|^x-face:\\|^x-mailer:\\|^delivered-to:"
+(defcustom rmail-ignored-headers "^via:\\|^mail-from:\\|^origin:\\|^references:\\|^status:\\|^received:\\|^x400-originator:\\|^x400-recipients:\\|^x400-received:\\|^x400-mts-identifier:\\|^x400-content-type:\\|^\\(resent-\\|\\)message-id:\\|^summary-line:\\|^resent-date:\\|^nntp-posting-host:\\|^path:\\|^x-char.*:\\|^x-face:\\|^x-mailer:\\|^delivered-to:\\|^lines:\\|^mime-version:\\|^content-transfer-encoding:"
"*Regexp to match header fields that Rmail should normally hide."
:type 'regexp
:group 'rmail-headers)