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sunhux

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lesser known public webmail / browser based email

We have blocked yahoo, Hotmail, gmail, dropbox :
our audit says there are some lesser known ones that were
not blocked by our Bluecoat proxy.

Anyone can help list out these browser based emails &
file sharing tools ?  Would like to cover more to be thorough
to prevent data loss/leakage
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McKnife
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Ask your auditor.
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sunhux

ASKER

http://mashable.com/2007/09/05/email-toolbox/#4kLEo1RSqGqA

I'm testing out the list of email services given above: so far ten of them
are blocked automatically by bluecoat being email or Placeholder
category
ASKER CERTIFIED SOLUTION
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bbao
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ASKER

Auditor says that's my job to find out.

https://sitereview.bluecoat.com/sitereview.jsp 
Yes, we have been using the above sites: recently there's this  "Wander Chat"
(ie https://angel.co/wanderchat) that Bluecoat categorize as "Job Search"
which it did not block but this Wander Chat allow files to be uploaded to it.

Thanks bbao : I will test them out.

Many of the webmail like Canada Mail will display the main/login page
but upon login, Bluecoat blocks it while for gmail & Yahoo emails, BC
will block even their login page
Because not all of the sites are categorized as mail sites. So in all fairness, you are not going to be able catch every single one unless you are consfantly scouring tje internet. There is always a margin of error.

Technically, it sounds like goubhabe things set up well, but the Blue Coat is failing you in that respect. Did the auditor check your configuration? I am also sure that if you show the reasoning, then you may get some relief. Unless they turn out and try to force you to block everything and only whitelist sites, which is a ridiculously draconian approach.