mutt and exim

[Jack]

hi,

I used to use sendmail as mailer,  worked fine.  Now I use exim,
something weird happened.  One local user, A,  sends email just fine
(local and internet) from mutt.  And one other user, B,  could not send
any email at all from mutt.

B user can send email by using "mail".  So I'm sure it's a problem with
configure file (muttrc) B has.

Could anybody tell what settings are sendmail related?


thanks,

jack