exchange server

Exchange Server today is widely used by many companies across the globe. You never know in future
maybe more and more companies migrate to Office365, but Exchange Server will remain the widely
used at least coming half a decade.

Are you still get Warning in Outlook Clients that The name on the security certificate is invalid or does not match the name of the site? Change your local Names in your Exchange Server to resolve your issue.

In Exchange Server we are familiar with SMTP Address like kostas@example.com.Most of them are happy with just one or two of SMTP Addresses. But what happened if you have migrated any user , setup cross forest , just try to Reply in someone who left from the company or face a mailbox corruption and must create the same mailbox? Then probably you will see some strange behaviour of the email address.