<a href="https:&#x2F;&#x2F;sneakemail.com" rel="nofollow">https:&#x2F;&#x2F;sneakemail.com</a> does what you want and has been around for over 15 years. It also supports greylisting, generation of temporary email addresses based on keywords, disabling and re-enabling of temporary addresses, multiple rulesets, tweakable everything. Freemium model.