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Certificate Verification Failure when Patching Veeam Backup for Office 365? You're not alone! – Michael Paul | @micoolpaul
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How to fix error “[SSL: CERTIFICATE_ VERIFY_FAILED] certificate verify failed” (_ssl.c:727) – DEVOPS DONE RIGHT
Certificate validation failed during pre-check" error while upgrading from vCenter Server 6.5 to 6.7 or later (68155) | VMware KB
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