OpenXchange SSL Cert - new AD User - contex10 error

Hello everyone,

after we have our domain SSL certificate at:
dovecot
Apache
postfix

have set up

Can we log in with the existing AD users.

But new AD users who are registered via Windows cannot log in to Open-XChange.

The users are not written into the OX context.

However, manually creating a user in UCS works. This person can then also log in to OX.

Where is our mistake?

Thank you

OX-connector shows:

requests.exceptions.SSLError: HTTPSConnectionPool(host=‘mail.ahconline.de’, port=443): Max retries exceeded with url: /webservices/OXContextService?wsdl (Caused by SSLError(SSLCertVerificationError(1, ‘[SSL: CERTIFICATE_VERIFY_FAILED] certificate verify failed: unable to get local issuer certificate (_ssl.c:1129)’)))

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