Send notification email if email address changed

[Deleted user]

User request: If the email address of an login-able user account (org Admins) has been changed, send an e-mail to the old and new address to inform about the change

[MarkHofstetter]

please provide Text for the email, I started workiung on the technicalities

[MarkHofstetter]

just for clarity: a mail has to be sent if the users (not the memberships) email is changed and the user has a least one one membership with OrgAdmin?

[MarkHofstetter]

please test and close