sendmail (Junk Mail)

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Our administrator boxes get flooded with emails from spammers who are still sending massive emails to address that do not exist. Of course sendmail sends a response back to the from header saying the account dosen't exist. However, the sendmail server is getting those responses bounced back to them because these are junk emails with no real return address. As a result the undeliverable mail gets sent to "postmaster". Thus the "postmaster" email is a hoard mess of junk email bounced replies.

How is being handled ?

--
robert

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