Leonardo,

> I'm building a new machine to replace an aged amavis installation.
> So far the new machine is in "sending only" configuration (it does no
> receive mail yet).
> I've run successfully v2.6.3 with the $banned_filename_re set to:
> $banned_filename_re = new_RE( ...

> This configuration allowed me to block executables within archives.
>
> Upgrading to v2.6.4, archives with executables files in them (.exe)
> are no longer blocked, and I dunno why.


> Aug 24 12:13:26 smtp amavis[20479]: (20479-01) Unzipping p003

> Aug 24 12:13:26 smtp amavis[20479]: (20479-01) (!)Decoding of p003
>   (Zip archive data, at least v2.0 to extract) failed, leaving it
>   unpacked: Compress::Raw::Zlib version 2.017 required--
>   this is only version 2.008 at (eval 100) line 467.

> Aug 24 12:13:26 smtp amavis[20479]: (20479-01) decompose_part: p003 -
> source retained

As the message indicates, your Compress::Raw::Zlib is too old
and is not called for security reasons (DoS).

  Mark

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