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Adrian2020's avatar
Adrian2020
Copper Contributor
Dec 19, 2018
Solved

Identify Messages received without TLS

Hi Guys, I see a report in my Office 365 suite that this week we received 4 messages without any TLS encryption. Now I would like to understand who sent them to us.    Are you aware of a possibili...
  • VasilMichev's avatar
    VasilMichev
    Dec 19, 2018

    I don't think there is a way to get this information from the dashboard/widget. The only way I can think of is querying the message trace details, for each individual message, and checking the TLS value there.

daviddevosstars's avatar
daviddevosstars
MCT
Dec 20, 2018

Hello

 

If you go to Security & Compliance center ->  click reports section, there is a dashboard mentioning  TLS 1.0 1.1 1.2  mail flows.    Both for incoming and outgoing emails.   These are interactive, so you can drill-down on the sections by clicking on them.

 

If you want to see list of individual mails, you can trace them from the section "Mail Flow" and the information should be included in an extended trace report.  It's not available in the default summary report.

 

If you have four mails only without TLS, it's usually something like scan to mailbox solution on a multifunctional printer.

 

Cheers

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