Office attachment error "File couldn't open in protected view"

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7224jobe
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Joined: Sat Sep 13, 2014 1:55 am
ZCS/ZD Version: 8.8.15_FOSS Patch38

Office attachment error "File couldn't open in protected view"

Post by 7224jobe »

Hi,
one of my users is struggling with a strange issue. When he downloads an Office attachment (docx, xlsx, pptx,...) from Zimbra webmail and tries to open it with Office, an error appears: "This file couldn't open in protected view". To be able to open it, he has to right click on the file, than click properties > Security > unblock.
If he downloads a .docx file from another website, he is able to open it immediately.
Is there a way to "whitelist" Zimbra server and disable this auto blocking feature?
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