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There was a problem opening your mailbox (after SSL cert has been installed).

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Last Modified: 2018-11-06
Hi guys

I've just recently installed a new SSL certificate for our Exchange 2010 server. People can access the site. However, nobody is able to open attachments. When they try, they are getting what I have attached. Have a look and see. All of the browsers that are trying to open are using IE8 (sadly) as they are our stores and are locked down, but they were able to do all of this before.

Is this DNS related? Is it SSL related?

Thank you for helping
Yash
Picture.jpg
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MaheshArchitect
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Distinguished Expert 2019

Commented:
can you check what you are getting with google chrome
OR
clear the browser cache on IE 8 and check

IE8 is supported upto exchange 2013
Shreedhar EtteTechnical Manager
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Top Expert 2010

Commented:
In IE to Internet Options > Advanced > in the security part untick "Do not save encrypted pages to disk"

Author

Commented:
I have tried all of the above and nothing worked sadly.

Author

Commented:
Could it be anything to do with IIS settings? I had to make a little change last night and I wonder whether that would be why? Things like unchecking a tick in the SSL or HTTP redirect settings.

Author

Commented:
So now, we can't even respond back to emails. When we hit reply, the message body is blank but no cursor for you to be able to type back. So there's evidently something wrong with IIS?
David FavorFractional CTO
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Distinguished Expert 2019

Commented:
Tough to guess about, unless real links are shown.

Best way to debug is to take one of your email + decode the attachments.

My guess is the attachments may be being converted to external links (which are HTTP, rather than HTTPS).

If they attachments are actually inlined (include in the message) there should be no problem.

Fastest debugging will require you email someone an actual email, so they can debug the problem.
Scott SilvaNetwork Administrator
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Commented:
Did your cert require you to go to TLS 1.2? Is it enabled in your browsers? I don't think IE8 by default was set to support it.

Here are a few test sites.

https://www.ssllabs.com/ssltest/viewMyClient.html
For listing of supported protocols

https://tls1test.salesforce.com/s/
To see if TLS 1.0 was disabled

Author

Commented:
I checked TLS 1.2 and still it's got the same issue. I disabled TLS 1.0 and tried and the same thing.

So when I try to compose messages, it just doesn't open up the pop up. When I hit reply to a message, it comes up with the box but no ability to type inside. I've attached the picture of what I'm seeing.
Exchange-store.JPG
Scott SilvaNetwork Administrator
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Commented:
Did you document everything you did adding the new cert? Did you remove the expired cert?
Is time right on server and clients? I recently fired up a laptop that had been sitting for 6 months or so and nothing was working right until I noticed the time was about 30 minutes in the future...

Do you have a newer system to test access with just in case it is IE8 related?
If the systems are locked at IE8 are other updates more current?
Is there a corporate or at least common virus scanner on workstations?

Author

Commented:
Guys, so the bizarre solution in the end was to do the following:

No restarts helped at all in the end.

Resolution:

Install Exchange SP3 and restart the entire server. And hey presto...it worked.

Thank you for your input.
Commented:
This problem has been solved!
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