7.6
SMTP Proxy
Hello
Few days ago there were many host mail server from outside send to my SMTP proxy such as mail1.us4.mcsv.net,mail2.us4.mcsv.net,…mailxx.us4.mcsv.net
how to block like wide *.mcsv.net ? or any advice ?
You may blacklist a whole domain, see Email — NethServer 7 Final
From the docs:
It’s possible to create an ‘Allow’ or ‘Block’ rule even for a complete email domain, not just for a single email address : you just need to specify the desired domain (e.g. : nethserver.org).