User was: email@example.com
User became married and is now firstname.lastname@example.org
User was identically changed to email@example.com where domainnamegroup.com is a domain name we utilize for our website, but is not an accepted domain within Exchange and is not hosted within our internal DNS either.
After user received indication that contacts were receiving NDRs on replying to her email, we noticed the error and made the update to firstname.lastname@example.org for her default reply-to.
However, now when starting Outlook, user receives a certificate warning for autodiscover.domainnamegroup.com
I've checked all settings, deleted .ost, etc. and cannot figure out why autodiscover is still using this domain name?