MailScanner at OmniComp.org
Fri May 6 14:48:11 UTC 2016
Ideally, your MTA (Postfix, Sendmail, etc.) should reject mail to
non-existent accounts during the initial SMTP transaction, before
MailScanner ever sees it. See page 8 of the MailScanner guide book for
an overview of how it works, available here:
If you provide more details on your server configuration, someone here
may be able to point you in the right direction. For example, with
> Rejecting mail for a non-existent recipient address. This form of
> ingress filtering helps to keep the mail queue free of undeliverable
> MAILER-DAEMON messages. This requirement is enabled by default
> = yes").
If you are relaying for other mail servers, you may also want to enable
recipient address verification:
On 5/6/2016 9:45 AM, Jim Wirtz wrote:
> Is there a way to configure MailScanner to not process email to
> nonexistent users/accounts?
> My server spends a lot of CPU time to check/process emails that are
> just going to be deleted.
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