Would be important to share manually typed passwords/details using a select destruct message rather than saved passwords only. The self destruct email option should have the following items to select:
Expiry date(including a option in setting to have default): Example, can be 1 day, 3, 7, 14 days etc.
Times it can be view((including a option in setting to have default - Default being one): Select how many times the password/content can be viewed
Ability to write/edit subject line of email for self-destruct message: So we can embed ticket number in subject line and basic info, in case they reply to the email, it can go straight to the ticket