On Mon, 6 Nov 2017, Viktor Dukhovni wrote:
/.*infusionmail.com$/ 550 Infusionmail is not wanted or welcome
/.*\yahoo\.com/ 550 Yahoo.com is not allowed here, use gmail or someone who
hasn't leaked 3 billion passwords
/\.(com|net|org|edu|gov|ca|mx|de|dk|fi|uk|us|tv|info|biz|eu|es|il|it|nl|name|jp|host)$/
DUNNO
/.*webinar.com/ 550 Die in a Fire spammer scum
/.*xpoof\.us/ 550 Die is a Fire spammer scum
/.*\.*/ 550 Mail for this TLD is not allowed
(those are the TLDs that my server gets mail from, not recommending anyone else
use that list).
And thus we balkanize the Internet. I would discourage anyone
from deploying such filters, IMHO they do more harm than good.
There are many legitimate domains under ".xyz", ".ovh", ...
and much junk email from ".biz" and ".info". Use decent RBLs
and content-based filters, avoid crude tools that impose
indiscriminate restrictions.
The above is a bad idea, that may be tolerable for their
creator, but such things do harm at a global level.
Don't do it.
I operate a bug tracker with free account registration. From time to time
users with such "intelligent" filters try to register. Usually I simply
remove the accounts to get rid of the bounces. It is not worth
investigating when someone does not want to be contacted. :-)
Ciao
--
http://www.dstoecker.eu/ (PGP key available)