Hi
I am on hybrid setup here and I need to remove a secondary domain (not required anymore).
In EOP my default domain is contoso.com and Online is contoso365.onmicrosoft.com
The domain to remove is contosohats.com (in EOP is authoritive)
I have removed and placed on hold all mailboxes/secondary SMTP and DL's with smtp: contosohats.com
The DNS is set to Azure (MX records, TXT and CNAME for Autodiscovery)
To remove the domain contosohats.com is it as simple as delete from EOP, Online, Azure > Custom domain names?
Are there any considerations I should be aware of?
Will the mailboxes archived/held still be able to be searched in?
Thanks M