tlug: X-Auth warning

[Viktor Pavlenko <vik@example.com>]

Hello.

While sending email from emacs (VM), or exmh, the following line gets
inserted into the header (also see the header of this email):

X-Authentication-Warning: mriya.com: vik set sender to vik@example.com using -f

`mriya' is my localhost's alias, `vik' is my account name. I don't
remember myself setting anything with -f... 

How to fix that? Is it an X authorization issue, or Sendmail? (I have
little knowledge in either of them) 

I run RedHat 5.2 on a standalone machine.

Thank you.

Viktor Pavlenko

vp@example.com
vvp@example.com
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