vCenter Appliance 6.0 U3 email notifications are not sent when multiple email addresses are defined in an alarm action
Recently I tried to configure email notifications on my lab vCenter Server Appliance (6.0u3), but experience issue: “Diagnostic-Code: SMTP;550 5.7.60 SMTP; Client does not have permissions to send as this sender” I tried to use solution from kb: https://kb.vmware.com/kb/2075153 but apparently, the solution does not work with latest 6.0.x appliance! After some research and digging deeper (header analysis ), it seems that root cause was invalid return path in the email header. To resolve this you need to edit two…