135: How do I change the included text prefix in mail/news followups? If you read mail with Rmail or news with Gnus, set the variable mail-yank-prefix. For VM, set vm-included-text-prefix. For mh-e, set mh-ins-buf-prefix. For fancier control of citations, use SuperCite. See question 103. To prevent Emacs from including various headers of the replied-to message, set the value of mail-yank-ignored-headers to an appropriate regexp.