Windows 7 A certificate chain processed, but terminated in a root certificate which is not trusted by the trust provider.

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JeffSmith67

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(I'm cross posting this from https://answers.microsoft.com/en-us/ie/forum/ie11-windows_7/a-certificate-chain-processed-but-terminated-in-a/e6895c7e-c6b9-4a96-a5f5-a4dcd40b7b45 as directed by the forum moderator there.)

Hello,


First, I have reviewed the other posts with similar questions and noted that I can install the certificate into root certificates and most likely this problem will go away, some specifics:


1) When a client reported this error using a pop.secureserver.net on an outlook 2003 client, I just figured it was godaddy or the REALLY old Outlook client, but nonetheless, I went in to troubleshoot it and was convinced it was godaddy, but when I tried to start my Outlook 2016 client on my Windows 10 computer on their network, I got the same error. Two notes are important: 1) I use godaddy as well and 2) I used the same computer at a different client just yesterday without a single error message.

2) They use POP 995 w/ SSL & SMTP 465 w/ SSL to pop.secureserver.net & smtpout.secureserver.net repsectively

3) I called the company that manages their firewall and was told that everything was fine, but was sent a certificate from the firewall that might fix the problem.

4) The firewall company tells me they use a fortinet firewall


I have some questions that I'm hoping one of the experts here can answer for me:


- What in a firewall setup can cause a certificate to fail as listed in the subject?

- Is there a port or configuration change they can make that would allow certificates to work properly?

- How can I fix this without installing a certificate on every machine in the business?


I hope this is in the right section. I saw where several posts having to do with certificate errors were redirected to the IE forum, so I posted it here. If there is a better forum for this question, please let me know. Thanks in advance for any help with this.


Jeff

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