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Couldn't establish connection to the server due to untrusted or invalid certificate


#1

We cannot seem to login on our mobile Outlook mailbox to our email. We receive the following notification:

“Couldn’t establish connection to the server due to untrusted or invalid certificate.”

If we try the Webmail link with the same credentials it works fine. Are you able to assist please?


#2

Same with me.
I can suspect that this might be somehow related to global action of withdrawing ssl and tls1.0 and 1.1 support and forcing to switch to tls1.2. But this is something that we as users are not in power to change. This has to be verified on OVH side.