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[FAILED] Zimbra Drive extension connection

Posted: Mon Aug 31, 2020 3:17 pm
by LZslb
with a configuration of 2 Zimbra 8.8.15 (Zimbra proxy in DMZ and the main ZIMBRA server in the LAN) + Nextcloud 18 hosted on an external cloud, when I test the link from the Nextcloud page I get the following message for the last test :

[FAILED] Zimbra Drive extension connection test: Impossible to connect to Zimbra Drive extension (response http code: 400)

I do not see what is blocking. Do you have a resolution search lead for me?

NB: Between the Nexcloud server there is a firewall at the level of the cloud infrastructure and a firewall for the DMZ and the LAN.

Thank you in advance for your suggestions.