I bought a pair of Adidas sneakers (no clue thrle name). They looked like the ultra boost series but without the special™ shoe sole (I think they are no longer being produced).
I bought them in 2012, and wore them in death valley, in the snow in Slovakia, as running shoes in the Forrest and more or less daily for ~8 years. And they still hold up.
Now the Ultra boost Adidas are crooked after ½ year.
I wrote a blog some time ago why selfhosting email sucks
https://nx2.site/email-selfhosting
If you just want the email server for only you and your friends, or for internal messages, selfhosting email can be fun, but your main email should probably not be selfhosted.