<div dir="auto">whitelist_auth *@x.y.z<br><br><div data-smartmail="gmail_signature">Dave</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Jun 23, 2021, 8:38 AM Budi F <<a href="mailto:bfebrian@gmail.com">bfebrian@gmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi,<div>We uses MailScanner version 5.3.3, CentOS release 7.8.2003 and Postfix-2.10.1-9.</div><div><br></div><div>We have another domain, called "x.y.z" which is our sister company.</div><div>Right now we put domain "x.y.z" into our whitelist, but it become a problem when we received many spoof emails claim from domain "x.y.z"</div><div><br></div><div>Is it possible that we only allow email from domain "x.y.z" only from a specific IP address, and reject the rest?</div><div><br></div><div>We can use SPF but that means we need to exclude domain "x.y.z" from our whitelist.</div><div><br></div><div>Or if there any other way that we can receive only the valid email from domain "x.y.z" ?</div><div><br></div><div>TIA</div><div><br></div><div>Regards</div><div><br></div><div><br></div><div><br></div></div>
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