On my functions.php I found this code: function mail_from()

Hello,

On my functions.php

I found this code:

function mail_from() {
$emailaddress = 'contact@westgalil.dan-go-online.co.il';
return $emailaddress;

where the "dan-go-online.co.il" stands for the website company that created the site.

The problem is that when someone sends an email, he sees this website on the contact form, and the website owner asked to remove the "dan-go-online.co.il"

The site uses contact form 7

How can I remove this without damaging the contact form?

Thanks!