Issue: After installing Exchange 2007 SP3 Rollup 12 the Outlook Web Access logon page is blank showing no images.
Solution: Open Exchange Management Shell and execute the updateowa.ps1 script located in C:\Program Files\Microsoft\Exchange Server\Bin
Conclusion: At this point OWA should be displaying images properly and you should be back in business. Read more [...] OWA logon page blank after rollup install
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Issue: After installing Exchange 2007 SP3 Rollup 12 the Outlook Web Access logon page is blank showing no images.
Solution: Open Exchange Management Shell and execute the updateowa.ps1 script located in C:\Program Files\Microsoft\Exchange Server\Bin
Conclusion: At this point OWA should be displaying images properly and you should be back in business. Read more [...] 
These steps will walk you through assigning an existing third-party SSL certificate to the Exchange services such as IIS, SMTP, POP, IMAP and UM. These steps assume you have already completed a certificate request and installed your SSL certificate on Exchange 2013.
Step 1: open Exchange Admin Center (EAC) and click servers > certificates.
select your SSL certificate, and click the edit button .
Step 2: click "services" and then place check marks next to the services that you would