> is it possible to configure whitelist attachment filtering?
> So only let pass some defined extensions?
>
> e.g.:
> Allow: pdf, jpg, docx, zip
> Block: all others
Yes. You can used the advanced attachment filter rules: http://www.pscs.co.uk/manual/attachment_processing_advanced_rules.html
Eg:
{
#Allow pdf jpg docx and zip files
Filename extensions pdf jpg docx zip
Stop
}
#block everything else
*