Black list a country code

1

good day. i just installt mail in a box and I was wondering if it is possible to block people from other countries who are trying to use the domain (trying to access it) for security reasons.

thanks in advance

2

I’m not aware of a way to do this with MIAB (absent changes you might make to Postfix).

Using a filtering service such as MxGuardDog in front of MIAB would be an alternative. Their service allows filtering by country.

3

A source of IP address blocks by country can be found at www.ipdeny.com which you might block at the firewall ufw