Linking 2 different email addresses of same user

[Prateek.Phadke]

One of the JIRA users in my organisations earlier had the access to JIRA via his email address as X0001@<domain>.com.au (with an email alias of <firstname>.<lastname>@<domain>.com.au)

That user left the organisation about an year ago but his account in JIRA remained in deactivated mode.  The same user has started with us again but this time on  different type of contract. So even if his email alias remains unchanged but the actual employee ID has changed from X0001 -> XH001(e.g.) so that actual email address behind the scene is XH001@<domain>.com.au

His existing account can be activated, but all email comms including password resets go to the old email address which isn't accessible anymore.

How do I activate his old account while changing the email address only? Is that actually possible or the best option is to delete all old accounts and create a new one reconfiguring the access to required JIRA projects again. 

Please note that the user had the Project Admin, EA and partial System admin access with his old account.

[Daniel Ebers]

Hi Prateek,

in case the deactivated account is in Jira internal directory the easiest way is to re-enable it, set a dummy mail address and deactivate it again.

In case an external directory is used it depends, mostly on company guidelines, if the user can be reactivated for a moment using a dummy address or not.

If an external directory is used and the user must not be re-activated for a second to change to a dummy address the option of last resort would be to update his mail address in Jira database. This was reported to be absolutely doable - but always comes at a certain risk of breaking things in the DB.

Cheers,
Daniel