Thanks for confirming this Sven. I took your advice and found out that according to fastcompany website, the app stores messages on third party servers and sends password information back to microsoft (annotated source: https://genius.it/14327807/www.fastcompany.com/3042238/microsofts-new-outlook-app-isnt-safe-for-government-email)
I spotted a couple other IP addresses that also belong to them and are used to access my users mailboxes (and possiblty passwords !) http://www.ispinfo.net/isp/52.232.250.20.html http://www.ispinfo.net/isp/40.123.47.209.html Daniel Sent with ProtonMail Secure Email. ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐ On April 15, 2018 11:37 AM, Sven Hartge <s...@svenhartge.de> wrote: > daniel_1...@protonmail.com wrote: > > > Could it be that the outlook app uses microsoft's servers to fetch the > > > > mail before handing them to the user ? > > Yes, this is the case. Have a little web search for "microsoft outlook > > app security risk" to see the implications. > > Grüße, > > Sven. > > > -------------------------------------------------------------------------------------------------------------------------------------- > > Sigmentation fault. Core dumped.