Ralph Seichter <[email protected]> писал(а) в своём письме Sat, 10 Aug 2019 00:05:12 +0300:

* korsar:

1) ACE has no support at all, need to add it

Not having seen ACE archives in the wild for more than 10 years, I don't
think so. Besides, to my knowledge ACE is a proprietary format with a
Windows focus and a license that does not permit including it in free
software.

2) gzip - gzip -d command changes original file names of extracted
files, [...] 7z, please.

You can adjust filetype-to-decoder mappings in your amavisd.conf if you
don't like the defaults.

-Ralph

I mean 7zip supports 35 archive type, any of them may be used to hide ransomware in the .rar or .zip file and opened by end user. So the mail system is only half protected.

How I can make filetype-to-decoder mappings in amavisd.conf?
Set "$gzip       = '7z';"?

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