Syindication
How To Configure Sendmail for DNS-based Blacklisting
Wed, 07/09/2008 - 18:13
As soon as a host connects to SMTP port running a sendmail MTA, sendmail can also be configured to check and block IP addresses of incoming emails that are found to be listed on one or more DNS blacklists. This is possible by configuring sendmail directive dnsbl or DNS blacklists. During the SMTP...
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