mail() sendmail $j

[Anon]

I have multiple domains. I need to send email from each of them. I want all header info to reflect the domain it was sent from so we aren't getting replies to the 'root' domain.

$j in sendmail is the sending domain.

Can I change $j in sendmail through mail( )? I don't want to change it universally, I want it to change dynamically when email is sent.

[cheald]

Yes, you can use the header portion of the mail() function ro specify who it's from.

For example:

mail("[e-mail]","Hi","Hi","From:$j\r\n");

The syntax may need help (Been a while since I've done mail()) but the idea's solid.

Check the manual for the exact syntax.

[Anon]

no,no,no,no....

SendMail automatically sends a header called 'Received:'

Received: from my.domain [123.456.789.000] by your.domain [123.654.987.111] (then it is time stamped)

I can send a Received: header, but SendMail sends it's own header. If I send one, then there are two Received: headers sent.:

Received: from my.root.domain [123.456.789.000] by your.domain [123.654.987.111] (timestamp)

Received: from domain.masquerade [123.456.789.111] by your.domain [123.654.987.11] (timestamp)

The first is the one that Sendmail generates and the second one is what I send through mail( ).

In SendMail, there is a variable '$j' that holds the value of the Received: header. I can go into the sendmail.cf file and change the $j value, but it would be reflected on all my sites. I am just wondering if the mail( ) function allows for me to change this dynamically, or do I need to write a script to do it?