Exchange HCW8077 Tenant organization is Dehydrated on February 06, 2019 365 8077 allowed because being currently customization dehydrated EOL exchange HCW is not Office Organization Tenant the upgraded +
Exchange HCW8078 - Migration Endpoint could not be created. on September 18, 2018 8078 authentication EOL exchange Exchnage HCW Hybrid IISRESET migration MRSProxy Office365 Online Service +
Office 365 - 454 4.7.5 certificate validation failure on July 10, 2017 454 4.7.5 certificate EOL failure Flow HCW Hybrid Issue Mail O365 Office 365 send connector. TLS validation +