I have a domain with one of the new TLD which I used for my emails.

Most services worked fine with it, but there were a few cases where my email was flagged as fraudulent and I had to call, explain it was legit and provide with another email.

There was one service I registered which explicitly said they oy accept gmail addresses.

Roughly one year ago I acquired a new domain using the .org extension, I am migrating my accounts to this one, and I havent had any problems so far.

So overall my conclusion is that most services are fine with custom emails, a few of them block based on TLD and an even smaller subset will allow only specific providers. Since I am moving alway from big corp, having a widely used TLD that seems to be accepted in most cases is my personal sweet spot.

I didn't know about crisis either, thanks for the source!

What I meant is the Portuguese cacófato

One quintessential example of this is found in one famous Camoes sonnet: "Alma minha gentil que te partiste"

"Alma minha" (kind soul) sounds like "ao maminha" (to the little nipple".

Other example is: " acabou-se tudo" (all is over) Sounds like "bucetudo" (extremely vulgar way to say a person has a large vagina)

Wow, that's fascinating. To be honest I had never really thought about this before, be ir conlangs or otherwise.

But it does remind me of an interesting phenomenon that happens in some languages were the end of one word joins the beginning of the second one, giving rise to a third word.

I'm with you on that one. Currently paying for tuta (1$) and addy (1$) and forwardemail (3$). Forwardemail is actually more expensive

But neither proton nor tuta support IMAP, SMTP, at least not without the bridge thing.