<div>
HI,<br />
<br />
Which error do you have when you try to connect in OWA externally?<br />
<br />
Error 500?<br />
<br />
Cheers
</div>


HI,

Which error do you have when you try to connect in OWA externally?

Error 500?

Cheers

<div>
@Viktor I get an error:<br />
<br />
&quot;This site can't be reached<br />
ERR_CONNECTION_TIMED_OUT&quot;
</div>


@Viktor I get an error:

"This site can't be reached
ERR_CONNECTION_TIMED_OUT"

<div>
HI,<br />
<br />
When you launch the OWA link do you see the correct certificate displayed?
</div>


HI,

When you launch the OWA link do you see the correct certificate displayed?

<div>
<a href="https://filedb.experts-exchange.com/incoming/2017/11_w48/1212810/owa.PNG" target="_blank" title="owa.PNG (36 KB)"><img alt="owa.PNG" class="file-block lazyload" style="max-width: 763px;" data-src="https://filedb.experts-exchange.com/incoming/2017/11_w48/1212810/owa.PNG" /></a> This is all it shows.
</div>


owa.PNGhttps://filedb.experts-exchange.com/incoming/2017/11_w48/1212810/owa.PNG This is all it shows.

owa.PNG

<div>
@Hemil and Viktor<br />
<br />
I checked port 443 and it's close. I opened the port and that's it, issue resolved!<br />
<br />
Thanks guys!!
</div>


@Hemil and Viktor

I checked port 443 and it's close. I opened the port and that's it, issue resolved!

Thanks guys!!

<div>
<div class="content wysiwyg-content">
I configured &nbsp;an Exchange 2013 on Windows Server 2012 R2, I already obtained a certificate and followed every step here <a href="https://technet.microsoft.com/en-us/library/jj218640(v=exchg.150).aspx" rel="ugc">https://technet.microsoft.com/en-us/library/jj218640(v=exchg.150).aspx</a>&nbsp;but I am unable to make OWA work. I can open it internally but not in external network.
</div>
</div>


I configured  an Exchange 2013 on Windows Server 2012 R2, I already obtained a certificate and followed every step here https://technet.microsoft.com/en-us/library/jj218640(v=exchg.150).aspx but I am unable to make OWA work. I can open it internally but not in external network.

External Outlook Webmail not working on Exchange 2013

Exchange is the server side of a collaborative application product that is part of the Microsoft Server infrastructure. Exchange's major features include email, calendaring, contacts and tasks, support for mobile and web-based access to information, and support for data storage.

Exchange

Microsoft Outlook is a personal information manager from Microsoft, available as a part of the Microsoft Office suite. Although often used mainly as an email application, it also includes a calendar, task manager, contact manager, note-taker, journal, and web browser.

Outlook

Windows Server 2012 is the server version of Windows 8 and the successor to Windows Server 2008 R2. Windows Server 2012 is the first version of Windows Server to have no support for Itanium-based computers since Windows NT 4.0. Windows Server 2012, now in its second release (Windows Server 2012 Release 2) includes Foundation, Essentials, Standard and Datacenter, and does not support IA-32 or IA-64 processors.