I have one query of user. Please clear the Doubt
Currently user mailbox is on Office 365 and his email address is Robin@xyz.com.
Now user need to have one more email address linked to its current email address like. Robin@abc.com.
So i have checked Abc.com is showing in Accepted domain as Authoritaive and i also checked firstname.lastname@example.org is not any other mailbox.
So please confirm is it make any sense if i add the "Robin@abc.com" as a Secondary email address in his current Mailbox email addresses"Robin@xyz.com"
Is it the right approach or any other sugegstion to Resolve this request