1 Topic by 2009tester

  • 2009tester
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  • Registered: 2012-06-21
  • Posts: 15

Topic: Attachments with GZ compression

==== Required information ====
- iRedMail version (check /etc/iredmail-release): 0.92
- Linux/BSD distribution name and version: Debian
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): pgsql
- Web server (Apache or Nginx):Apache
- Manage mail accounts with iRedAdmin-Pro?
- Related log if you're reporting an issue:
====

New trend in sending EXE files is by compressing them in GZ.
Mail server passes them unchecked.

How to implement to stop all EXE files in GZ compressed form?

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2 Reply by ZhangHuangbin

  • ZhangHuangbin
  • ZhangHuangbin
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  • Registered: 2009-05-06
  • Posts: 30,809

Re: Attachments with GZ compression

On Debian, /etc/amavis/conf.d/* contains rule to block extensions.

3 Reply by 2009tester

  • 2009tester
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  • Registered: 2012-06-21
  • Posts: 15

Re: Attachments with GZ compression

Thanks Zhang
Amavis conf file banned .gz extension attachments.

Also, amavis sends a notification to the sender that email is rejected due to the file extension.