I had read his post. There were plenty of other comments asking how/where and this makes it an easy option.

If you are looking to do this then go check out Mail in A Box

Great collection and super helpful forums

https://mailinabox.email/

Isn’t an “X” how illiterate people signed their name?

Apollo icons were the gold standard.

An export/import for “subscribed” communities would encourage a lot of people to do this.