email-sending.txt
My app needs to send: <transactional / notifications / both>.
Stack: <stack>. Volume: <roughly how many a day>.

- Recommend one sending service and say why, for my volume.
- Show me the integration, with sending done in the background so a
  slow provider can't hang a page load.
- Tell me exactly which DNS records I need (SPF, DKIM, DMARC) and what
  each one does.
- Both a plain-text and an HTML part. Handle the bounce case.

Then: how do I test this without emailing real people?

Mail sent straight from your own server without those DNS records mostly lands in spam. The records are the difference between "sent" and "delivered".