Very Computer

I have setup sendmail to masquerade my email that I send out to my isp.
However, how do I make it change/add the default 'Reply-To' and/or 'From'
address in the header?  Because, the default is my hostname (that I gave my
computer) and my isp's domain.

Any help is greatly appreciated, because I haven't found any info on this.

Also, how do I keep sendmail from trying to use the outside network
(internet), when sending a local email message?  (I have it to demand dial
and this can be annoying and unnecessary)

--

Brent Haag
Kansas State University
**** remove NOSPAM if replying by email *****

To have sendmail change the headers like that, you need to have support
for virtusertable in your sendmail.cf file. First, add:
FEATURE(`virtusertable')dnl
to your mc file.  Then, you've got to create your cf file:
m4 ../m4/cf.m4 file_name.mc > sendmail.cf
Then, create your virtusertable(usually /etc/mail/virtusertable).  The
syntax is:

After that, create the database(you must be in the same dir as the
file):
makemap hash virtusertable < virtusertable
and restart sendmail.

Another option would be to use masquerading.  With that approach, any
user sending e-mail from your machine would have the ISPs domain
attatched for their e-mail address. Basically, all you'd have to do
to do it this way is add:
MASQUERADE_AS(`domain.com')dnl
MASQUERADE_DOMAIN(`your_box_domain.com')dnl
FEATURE(`masquerade_entire_domain')dnl
FEATURE(`masquerade_envelope')dnl
to your mc file and create sendmail.cf as described above.

To have e-mail delivered locally on your box, your box needs to be
set to accept mail for the domain. Make sure you've got the domain
name in /etc/mail/sendmail.cw, assuming you have cw file support in
your cf file. If not, add
FEATURE(`use_cw_file')dnl
to your mc file and generate a new cf.

If you've got the sendmail source, check out the README file in the
CF directory, it goes through all the options available for an mc
file.

Kevin