[putrikarunia]

Here's a link to the Stripe payment links https://stripe.com/payments/payment-links.

For email domains, we don't handle your emails. You could use any email provider that you want, like MailChimp, Sendgrid, etc. Since connecting custom domains doesn't require you to point your nameservers to Typedream, you can add MX records, etc. that is usually required for you to set up your email provider.

Thanks for your explanation on A/B testing, that makes sense and we have had a couple of similar requests as well! This is definitely something we're looking to add as a feature.