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Blocking Email Attachment download from outside company in Office 365

In Office 365, Emails can accessed from anywhere (within or outside of the company). Want to block Email attachment download from outside of the company. Emails should be accessible from outside of ...
4
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1answer
9k views

Identify if a certain domain is using Office 365 or Google Mail

I have a list of e-mail domains that i wanted to confirm if they're using Office 365 or Google Mail for mail. Checking MX using Nslookup can do the job but I noted that a few companies will use an ...
3
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3answers
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Is sending email between different Office 365 domains (and organisations) secure?

Is sending emails between different Office 365 account owned by entirely separate entities secure? I.e. The email never leaves the Microsoft network? If the two are in the same data centre (E.g. ...