Block entire top level domain

Hi, I want to block an entire TLD in global filters, I found an old thread which suggested the following regex
/<.+?@.+?\.online>/
but that appears to be ignored, any other methods ?

 

Which old thread is that?
There is tutorial, found it using Internet Search Engines with

Code:

block an entire TLD in global filters, site:howtoforge.com

https://www.howtoforge.com/tutorial/how-to-block-email-from-certain-tld-in-ispconfig/

 

Hi Cheers, not sure where the thread was but it uses the same regex as in that tutorial which is not - for me at least - working.

 

The tutorial has comments where regex is discussed and commenters claim to have better versions.
There are regex testers in the Internet, websites with regex test tool, for example https://regex101.com/ . More websites can be found using Internet Search Engines.

 

The regex
\^*.online$
works in the regex validator, so trying that now.

 

... and similarly does not work ... does anyone have any examples of a working format they are using in the global content filter ? even if it is for different rules ?

 

Hi, I want to block all incoming email from the .online TLD , not interested in domain part etc just the whole TLD.

 

May I know why you are not just using closely to the one suggested like:

 

because I did not know it ~...
but it works so many thanks!