A tool like this is very useful, but this one isn't being maintained anymore. MailHog isn't either.
MailPit, MailCrab and smtp4dev are modern alternatives.
https://github.com/axllent/mailpit
replies(17):
MailPit, MailCrab and smtp4dev are modern alternatives.
https://github.com/axllent/mailpit
Things that don't change over a longer time period can be more comfortable sometimes. Especially things you use often and build up a sort of "muscle memory" about.
In well-written software, the maintenance burden is low, but it's not zero. Without any maintenance, you can maybe run some piece of software in some closed-off container for a while, but it will keep rotting away and eventually you won't even be able to compile it anymore.