Unable to install SmaterMail 16
Problem reported by Jason Soucy - November 12, 2017 at 11:22 AM
Submitted
I have uninstalled SmarterMail 15, stopped the site and application pool.  I have started the installation for SmarterMail 16 and it keeps failing with this error:
"A file that is required cannot be installed because the cabinet file C:\Users\..\AppData\Roaming\SmarterTools\SmarterMail13.3.6522.28885\install\disk1.cab has an invalid signature.  This may indicate that the cabinet is corrupt."
 
Then the installation rolls back.  This is on a Server 2012R2 system without internet access.  

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Jason, did you reboot after uninstalling 15x? I know it's not in SmarterTools install instructions, but I have seen errors like this and others if a reboot doesn't happen after an uninstall and before an upgrade. I hope this helps. Thanks.
Linda Pagillo
Mail's Best Friend
Email: linda.pagillo@mailsbestfriend.com
Web: www.mailsbestfriend.com
Office: 703.988.3606

Authorized Reseller of SmarterTools Products
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