On 09.05.2015, Mutt wrote: > Also, note that since most MUA's include such a header, > not giving one will also give some information.
If you are concerned, you could also unset the User Agent string
("unset user_agent"), and mutt won't generate any. Even more, if it makes you
feel better, you could also fake one. Unset the mutt user agent header, and set
e.g.
my_hdr User-Agent: Mozilla/5.0 (Windows; U; Windows NT 6.1; rv:2.2)
Gecko/20110201
or what you prefer.
