Selective domain "Challenge" - Fighting Spam
Idea shared by Curtis Kropar - 7/28/2019 at 2:41 AM
HI.  I cant remember if i asked this before. And i am not sure this is in the current works.

Almost all of the spam that our server gets is from loosers with a .us domain.  

I want to block all of the .us on the SMTP, and force any inbound email from a : "EHLO *.us" to get an auto response from our server saying "Click here to complete delivery of the email" or do a captcha or something.

I am not concerned aout the .com or .orgs, or others, i only wnat to be able to challenge the .US domains for now. - Providing technology services to non profit organizations, homeless shelters, clean and sober houses and prisoner reentry programs. in 2018, in just one year, we gave away 1,000 Free Computers !

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