[CentOS] dealing with spoofing

[m.roth at 5-cent.us]

Stephen Harris wrote:
>> Here's a thought I just thunk, folks: some scum, apparently in eastern
>> Europe, has harvested my email, and is using it in the Reply-To: in its
>> spamming efforts. Now, I realize that some mails go out from noreply,
>> but
>> other than that, is there a good reason why a mailserver would not be
>> configured to send delivery failure to *both* Reply-To and From?
>
> You don't want to send rejects to more than one address 'cos you then
> have a simple message multiplier; send one message, generate two bounces;
> the mail server will be doubling the back-scatter problem!
>
> Anyway, the SMTP server should send the delivery failure to the envelope
> address, which may be different to both the From and Reply-To addresses.
>
That would be lovely. Unfortunately, a high percentage seem to use the
Reply-To address. Trust me, the last four or five months, I've gotten
probably hundreds, if not more, of delivery failures. And I wind up at
least glancing at them, in case email to this list, or to a friend, has
bounced.

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