ramin
September 2, 2022, 8:31am
1
Since last week, we no longer receive emails on the ticket server. We use Microsoft Mail Server Office365. We use an Reverse proxy server.
Error:
upstream prematurely closed connection while reading response header from upstream, client: 10.56.65.51, server: zammad.g-i-m.com , request: “GET /ws HTTP/1.0”, upstream: “http://127.0.0.1:6042/ws ”, host: “zammad.g-i-m.com ”
Expected behavior:
Actual behavior:
Steps to reproduce the behavior:
Did you setup the account on the “Microsoft 365” menu entry? If not, maybe you run into a deactivated* basic auth, and you have to use the modern auth from the MS365-menu.
*MS randomly deactivate the basic auth from some tenants before the EOL in Oct. 22 is reached.
BTW: You can request to re-enable basic auth and extend the deadline until 1.1.2023 if you need more time to make the switch.
One month from today, we’re going to start to turn off basic auth for specific protocols in Exchange Online for customers who use them. Since our first announcement nearly three years ago, we’ve seen millions of users move away from basic auth, and...
system
Closed
January 3, 2023, 7:41am
4
This topic was automatically closed 120 days after the last reply. New replies are no longer allowed.