[flashmob]

Hi! I run a "copycat" site that perhaps you may be referring to in that post, GuerrillaMail.com (well, actually, I didn't copy it myself, but acquired it from another guy many years back) and also been using Redis to store all incoming mail in memory. RAM is cheap these days and you can find decently priced servers with >= 128GB easy. Haven't moved over to websockets or "chunking" / deduplication yet, but architecture and UI needs an update in that direction to make it more instant. Thanks for some ideas ;-)

Actually, like you, I've also hand-rolled most of it myself, replacing the previous guy's architecture. It's been a lot of fun. No frameworks, no bootstrap, just a few dependencies here and there. Started with PHP, but now prefer to use Go for anything new. Also hand-rolled the SMTP server which turned in to a project on its own, https://github.com/flashmob/go-guerrilla

[Dagger2]

Is guerrillamail.com supposed to be displaying just a "Welcome to nginx" page?

Screenshot on the left: https://nat64check.ipv6-lab.net/v6score/measurement-30830/