This is interesting, and I am curious to know the answer as well. We have an 
application where denying all tlds and then allowing in certain ones would be 
very useful. (Default reject, allow only whitelisted).

Michael Munger, dCAP, MCPS, MCNPS, MBSS
High Powered Help, Inc.
Microsoft Certified Professional
Microsoft Certified Small Business Specialist
Digium Certified Asterisk Professional
mich...@highpoweredhelp.com<mailto:mich...@highpoweredhelp.com>

From: owner-postfix-us...@postfix.org [mailto:owner-postfix-us...@postfix.org] 
On Behalf Of wodel youchi
Sent: Monday, November 6, 2017 4:26 AM
To: postfix-us...@cloud9.net
Subject: bloc domains with all variants of tld

Hi,

We need to bloc some incoming emails from certain domains.
How to write rules to bloc a domain with all its variant of tld?
if we want to bloc the example domain we write the rules like this

example.com<http://example.com>   REJECT
example.fr<http://example.fr>       REJECT
example.de<http://example.de>     REJECT
etc...

How to write one rule to express all tlds? something like

exemple.*      REJECT

Regards.

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