Security eMail Certificate not trusted

Discuss your pilot or production implementation with other Zimbra admins or our engineers.
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ZCS/ZD Version: Release 9.0.0.GA.3924.UBUNTU18.64 U

Security eMail Certificate not trusted

Postby oetiker » Wed Sep 23, 2020 1:14 pm

I get this emails with Certificate and it is official trusted. My I phone email Client does show all as trusted.

Does anybody know what I can do that this kind of Singed eMail show-up as Trusted?

Thanks Manuel
Screen Shot from the web zimbra webmailer
2020-09-23-14-53.png (40.17 KiB) Viewed 852 times
Screen Shot from the certificate
2020-09-23-14-51.png (13.33 KiB) Viewed 852 times

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