Error: InstallPatch, System.Exception: CAB is not verified! ; at MailEssentials.PatchChecker.PatchChecker.InstallPatch(String id) when trying to install the cumulative update via UI

Versions / Builds Affected

GFI MailEssentials 2015

Status

Resolved

Problem Summary

Error: InstallPatch, System.Exception: CAB is not verified! ; at MailEssentials.PatchChecker.PatchChecker.InstallPatch(String id) when trying to install the cumulative update via UI

TT / JIRAID

2531

How to Identify

By a similar error in the debug logs: "info ","PatchPlugin","Verify 1 - True" "info ","PatchPlugin","Verify 2 - false" "error ","PatchPlugin","Error: InstallPatch, System.Exception: CAB is not verified! ; at MailEssentials.PatchChecker.PatchChecker.InstallPatch(String id)" "info ","PatchPlugin","GetAvailablePatchList >>>>>>>>>>>>" "info ","PatchPlugin","patchList count 1" "info ","PatchPlugin","GetAvailablePatchList <<<<<<<<<<<<"

Workaround / Fix Details

Add the GFI certificate to the trusted people store in the local computer as per above steps. The issue is being caused by missing certificates, we were unable to identify which exactly. 1. click on Start, then Run and type mmc 2. Go to File, then Add/Remove Snap-ins, select Certificates and click Add, then select Computer account (leave Local computer selected) 3. expand the Certificates node, then Trusted People 4. right click on the Trusted People node, then All Tasks, Import... 5. download the certificate file, browse to it and hit Next until imported http://ftp.gfisoftware.com/support/ME/Skynet/codesigning.cer 6. try installing the patch again Should it continue to fail after performing the above steps, starting with MailEssentials 2015 SR1, there is a registry key which can skip the cab verification altogether. 1. Add a new registry key under HKLM\SOFTWARE\GFI\MailEssentials\Config named SkipPatchVerification and set it to 1 2. check the debug log file PatchPlugin.log found under the Attendant to confirm it works by looking for "Skipping verification..." For the 2015 Gold edition, please install the below patch: http://cdnpatches.gfi.com/me/20150102/ME2015_PATCH_20150324_2551.zip

Required Actions

Apply the above workaround and attach article to case.