Google blocking 7zip

Richard Hopkins Richard.Hopkins at
Mon Apr 7 12:47:48 BST 2014

--On 07 April 2014 12:14 +0100 Ian Batten <igb at> wrote:

>> Which they appear to have. Encrypted .7z archives (so long as they don't
>> contain "dangerous" attachments)
> How do they tell what the contents are?  Does the 7z format allow the
> table of contents to be read without having the passphrase?

Yes it does, although there is the option to encrypt filenames in the 


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