Another Thing #Programmers Believe About Email... [*]
Email is instantaneous, or close enough. Verification links and codes sent via #email with 5-minute timeouts are perfectly fine, because no one's email is ever behind a higher-latency link than that, or has email that traverses multiple #hops, or that email #servers are ever #overloaded or #down for #maintenance.
[*] Or possibly Thing Product Managers Believe About Email
#ThingsProgrammersBelieve #ThingsProgrammersBelieveAboutEmail