Migration from SHA-1 to SHA-2 certificates is required after upgrading to ePolicy Orchestrator 5.9

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• Email was unsuccessful due to an unknown error. the message could not be sent because of an unexpected error (ePolicy Orchestrator is not sending emails)

  https://kb.mcafee.com/corporate/index?page=content&id=KB81047&actp=LIST Technical Articles ID:   KB81047 Last Modified:  7/9/2018 Rated: Environment McAfee ePolicy Orchestrator (ePO) 5.x, 4.x Problem ePO is not sending emails when an Automatic ...