mail.mycompany.org is not redirecting to the https site

I upgraded exchange to 2016 and I just got it working, where with any browser, if I type: mail.mycompany.org it would redirect me to my OWA, of https://mail.mycompany.org, but now it's not anymore.

I have tried this on multiple computers, both internally and externally.

Any idea's what's wrong?  I confirmed that on my exchange server, under IIS redirect for the default site, I have the check mark checked for "redirect requests to this destination".

I get this error.
mailerror
DanNetwork EngineerAsked:
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Pushpakumara MahagamageVPCommented:
use simple request redirect on your owa iis server.

<html>
<head>
<title>Your-title</title>
<meta http-equiv="REFRESH" content="0;url=https://mail.mycompany.org"></HEAD>
<BODY>
</BODY>
</HTML>

you can use iis URL Rewrite module also

https://blogs.technet.microsoft.com/dawiese/2016/06/07/redirect-from-http-to-https-using-the-iis-url-rewrite-module/
Shaun VermaakTechnical SpecialistCommented:
Another option is to set site to require HTTPS and the add a custom error page for error 403.4 that redirects to HTTPS

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DanNetwork EngineerAuthor Commented:
Ive already done that, doesn’t work, I had that enabled already, that’s what I was doing.  So I disabled all the subpages for the redirect and I had the root default webpage redirected, but it’s mot working.
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DanNetwork EngineerAuthor Commented:
I had an open case on a different issue with MS, so I had them help me with this, there are a lot of different permissions problems in IIS.
DanNetwork EngineerAuthor Commented:
Thanks for the feedback
Pushpakumara MahagamageVPCommented:
You are welcom
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