topic Re: to change "from" field in mail in Operating System - Linux

to change "from" field in mail

kumar nishant — Thu, 28 Aug 2008 12:43:36 GMT

Hi,

I am using linux system. i want to send email from different user for example:- suppose i have logged in as user "xyz@f00.com" but i want, if i send am email, it should show user as "abc@company.com".
Can anybody guide me with detailed steps as i have very few knpwledge regarding sendmail. Please consider that i do have root previleges.

Regards,
Kumar Nishant

Re: to change "from" field in mail

Deepak Kr — Thu, 28 Aug 2008 12:48:56 GMT

I dont remeber file in linux exactly but aliasing is possible.

We can send mail as if it is comming from a different domain.

Re: to change "from" field in mail

Heironimus — Thu, 28 Aug 2008 14:46:38 GMT

What you want is called "address rewriting". The most common approach I've seen for sendmail is a genericstable. Your distribution may ship a default configuration that knows how to use a genericstable, or you may need to update the m4 and regenerate sendmail.cf.

It's a pretty common requirement. A google search for "address rewriting", "genericstable", and your distribution will probably provide some examples you can copy and modify.

Re: to change "from" field in mail

Steven E. Protter — Thu, 28 Aug 2008 15:33:56 GMT

Shalom,

man mailx

This might get it out the door in a simple fast, correct way.

Otherwise you are looking at http://sendmail.org and learning sendmail the hard way.

Either /etc/aliases or /etc/mail/sendmail.mc genericstable and virtusertable.

Take a look here for how to compile a sendmail.cf file from a sendmail.mc file on HP-UX

http://www.hpux.ws/buildmail.hpux.text

SEP

Re: to change "from" field in mail

Paul Sperry — Thu, 28 Aug 2008 19:09:29 GMT

look for this line in your sendmail.cf

# who I masquerade as (null for no masquerading) (see also $=M)

DMabc@company.com

and edit according. I thing you will have to stop and restart sendmail

Re: to change "from" field in mail

Bill Hassell — Fri, 29 Aug 2008 01:35:32 GMT

If you have the mailx program, just add the -r option. This will add a header that sets the return address, something like this:

mailx -r me@abcxyz.com -s "testing return" somebody@mycomputer.com < /some_file

mailx is standard on HP-UX.

Re: to change "from" field in mail

kumar nishant — Fri, 29 Aug 2008 12:30:24 GMT

in spite of all the suggestion, i am not able to configure my linux server. all the key word given by you doesn't exist on sendmail.cf file.
Can any one tell me the location or keyword which need to be changed in sendmail.cf file or you can suggest me chenges ( if i need to include any line) in sendmail.mc file and guide me with the steps to map this file.

Regards,
Kumar Nishant

Re: to change "from" field in mail

skt_skt — Fri, 29 Aug 2008 15:50:38 GMT

"sendmail -f" which does the same magic

Re: to change "from" field in mail

Bill Hassell — Fri, 29 Aug 2008 23:50:37 GMT

sendmail -f and mailx -r both accomplish the same thing. There is no need to modify your sendmail.cf file. The man page for sendmail is helpful. Modifying sendmail.cf is only needed when you want every message to have a different return address.

Re: to change "from" field in mail

kumar nishant — Mon, 01 Sep 2008 11:46:51 GMT

i got "-f" switch in sendmail but when i tried to send email through sendmail i receive massage but also i got one error message from system admin. i am not familiar with sendmail feature so can you please tell me how can i do "cc" and "bcc" using sendmail.

One more thing, can't i use "-f" option with mail or mailx command? i tried but got error (like use -c -s -b option).

Regards,
Kumar Nishant

Re: to change "from" field in mail

skt_skt — Tue, 02 Sep 2008 09:09:11 GMT

that sounds like you are puttting Diesel on petrol vehicle .. Look man pages mailx and use which ever (-r) supported

Re: to change "from" field in mail

kumar nishant — Thu, 04 Sep 2008 04:16:33 GMT

sorry, but if got option in man pages, i might not post this query in this forum.

I am looking for a total solution so that i can use this in my script to automate.

Re: to change "from" field in mail

skt_skt — Thu, 04 Sep 2008 09:14:36 GMT

test if this is the option u r looking in mailx

alternates name... Declares a list of alternate names for your login.
When responding to a message, these names are
removed from the list of recipients for the
response. With no arguments, alternates prints
the current list of alternate names. See also
allnet under ENVIRONMENT VARIABLES.

Re: to change "from" field in mail

skt_skt — Thu, 04 Sep 2008 09:20:33 GMT

from man of mailx. Not tested myself..

~b name ... Add name to the blind carbon copy (Bcc) list.

~c name ... Add name to the carbon copy (Cc) list.

~d Read in the dead.letter file. See DEAD (under
ENVIRONMENT VARIABLES) for a description of this
file.

~e Invoke the editor on the partial message. Also
see the EDITOR environment variable description
below.

~f [msglist] Forward the specified messages. The messages are
inserted into the message without alteration.

~h Prompt for Subject line and To, Cc, and Bcc lists.
If the field is displayed with an initial value,
it can be edited as if you had just typed it.

Re: to change "from" field in mail

kumar nishant — Thu, 04 Sep 2008 09:43:01 GMT

none of the option works. i have tried it before.