Re: How to prevent spoofing

Tech-Archive recommends: Fix windows errors by optimizing your registry

Spoofing "from" your domain?
If you mean that spammers on the outside are sending your server
messages with a "from" address as your own domain then you can
actually go into ESM / Global Settings and ban your own domain from
being received. Bizzare, but functional and supported.

If you mean that spammers are sending messages to all and sundry all
over the place and you are getting the ndr's because of the spammers
sending badly addressed mail then the first thing will work for you
but you have absolutley no way of stopping me (for example) sending
mails to my mate and pretending they came from you.
.

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