Do you send campaigns and app email from the same tool?

Hi everyone, Lalit here, founder of Cresca.

Most teams I talk to send two kinds of email: campaigns and newsletters to customers, and app email like password resets, receipts and sign-in links. Usually that means two tools, two domain setups and two bills.

Cresca puts both in one account. You describe a campaign and the AI designs the email, and your app sends its email through our API from the same domain, with one bounce and complaint list and one monthly allowance.

I'd love to hear how you handle it today:

1. Which tools do you use for campaigns and for app email?

2. Is running two tools a real pain for you, or does it not matter?

3. What would you need to see before moving either one?

Honest answers help most, including "I'd never switch, because…". I'll reply to every comment.