I have a Private Exchange solution with a custom domain all hosted on OVH.
Local email clients like Outlook 2013 (W10, Mac) and Thunderbird (W10), and AquaMail on Android all work fine. But I cannot access OVH Webmail using a browser (Firefox or Chrome) on https://www.ovh.nl/mail//
Error message details:
Activity ID: 806d3155-43df-4b14-cfc1-00800000008c
Relying party: Outlook Web App
Error time: Sun, 01 Mar 2020 09:05:37 GMT
Cookie: enabled
User agent string: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:73.0) Gecko/20100101 Firefox/73.0
I have reset the password using the OVH Web Control Panel and reset all the clients. So, I am sure that is not the problem.
I also ran the Diagnostics from the OVH Web Control Panel which confirms the problem and also confirms that there are no other problems (MX record valid, SRV record valid, no blocks by sec pol or spam, account is valid).
Please point me in the right direction?
MX Plan - Cannot access webmail
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Resolved. It was a browser issue. Using another browser was the solution.