Our Jira Admin left without assigning a new Admin. His email address has been deactivated at our institution. He doesn't remember his Jira password and can't use the recovery tool because he can no longer access that email account to recover the password.
Going through the previous answers on here only leads me to the support page that says only Admins can access IT support or create a service ticket. Our previous Admin can't do that because he can't log into Jira.
I am stuck here and unable to gain access to any support. Please help.