On 08.02.21 16:27, Eugene Podshivalov wrote:
Have read through the postscreen documentation closely and got it setup and
running already, but could not find the three major possibilities provided
by the tcp wrappers:
1. block by hostname
2. block clients with unknown hostname
3. block clients with invalid address<->name mapping
The last two produce the major bulk of spambot connections.
Are there any other means to achieve these?
you can block these at smtpd level.
Postscreen doesn't (and won't) check for reverse hostname.
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Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/
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