Ban .html as attachment but not html mails?

Remco Barendse mailscanner at
Wed Jun 30 19:30:44 UTC 2021

MOre and more malicious emails are coming in with .html as an attachment.

I do not need my users to receive .html files, ever

Blocking them in /etc/MailScanner/filename.rules.conf
#deny   \.htm$          Dangerous attachment type 
#deny   \.html$         Dangerous attachment type

Blocks every email in html, not exactly what I wanted.

What is the proper way to do it?


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