I checked, and the limit is 600. In practice, that is effectively "unlimited" for anyone who isn't a professional spammer or reseller of email services.
> doesn't let you have unlimited aliases
Untrue. It lets you easily add 30 aliases per user, but you can put a few more minutes of effort into it to add as many more as you want[1].
There's also the "{username}+{whatever}@{domain}" feature that lets you create disposable addresses or aliases (e.g. "sales+usa@domain", "sales+eu@domain", etc.)
> Gmail also doesn't let you do custom port forwarding
I have no idea what this means in the context of email. Is it for people who don't use standard IMAP/POP/SMTP ports?
...
Here is my individual marketing data point, which you are welcome (and likely, based on this thread so far) to disregard:
Your three main value propositions seem to be 1) privacy, beyond what is achieved just by leaving Google, 2) unlimiting features that Google tries to limit, and 3) better UIs for various existing features.
However, the four large features called out on your landing page are privacy (great!) and then three other things G Suite does.
Your about page mentions more interesting features, but it's a wall of text. It's generally hard to make sense of the service, and I'm saying that even as a highly technical user.
I would also recommend that when you get feedback along the lines of "your copy is confusing", you consider the possibility that your copy is confusing. No one should have to read hundreds of words in 18px font to understand why they'd give you time/money.
1. https://www.goldyarora.com/blog/create-more-than-30-email-al...