Please. Captcha by default. Email domain filters. Auto-block federation from servers that don’t respect. By default. Urgent.
And yes, to refute some comments, this publication is being upvoted by bots. A single computer was needed, not “thousands of dollars” spent.
Actually, hello.1@gmail will go to hello1@gmail.
The one you are thinking I believe is hello+1@gmail will go to hello@gmail
Correct, Gmail essentially doesn’t “see” dots hello@gmail is the same as h.e.l.l.o@gmail
hello+anything@gmail will also be delivered to hello@gmail. This is great for signing up for mailing lists or subscriptions then creating a filter afterwards to do with it what you please.