Transactional email
Transactional email is the mail your application sends — receipts, password resets, magic links, shipping updates, alerts. It's one-to-one, triggered by something a user did, and it needs to arrive now.
Faivelo's transactional email gives you:
- A send API —
POST /api/v1/emailssends from any address on one of your verified domains. No mailbox needs to exist for the sender:receipts@yourdomain.comworks the moment the domain is verified. - Designed templates — build the email once in the visual template editor, then trigger it from code with an alias and variables. See Templates.
- Delivery tracking — every send has a status (
sent→delivered,bounced,complained, orfailed) you can poll, plus webhooks that push those events to your server as they happen. - Automatic suppression — addresses that previously hard-bounced or complained are dropped before sending, so a stale address in your database can't damage your domain's reputation.
- Safe retries — send an
Idempotency-Keyheader and a retried request returns the original result instead of emailing your customer twice.
Who can use it
Transactional email is included on every paid plan, and every plan sends to anyone: Starter sends 3,000 a month, Growth 20,000, Pro 50,000 and Business 100,000 — at 10/60/120/240 recipients a minute respectively, with a daily cap of a tenth of the month (see rate limits). Transactional volume is a separate budget from campaigns, so a newsletter can never eat your password resets. Delivery webhooks are included from Pro, where each sending domain also carries its own reputation and a dedicated IP is available as an add-on. Every signed-in account can browse the Templates section and explore the editor. See Billing & plans.
Transactional vs. campaigns
| Transactional | Campaigns | |
|---|---|---|
| Triggered by | Your code, one recipient at a time | You, to a whole list |
| Examples | Receipts, resets, alerts | Newsletters, announcements, product updates |
| Sent via | API (POST /api/v1/emails) | Dashboard campaign wizard |
| Unsubscribe footer | Not added (it's not marketing) | Added automatically |
| Counts against | Your monthly sending limit | Your monthly sending limit |
Both kinds of sending draw from the same monthly pool and the same account-level sending limits.
Getting started
- Verify a domain (you've probably done this already).
- Create an API key with the
mail:sendscope — see AI agents & API keys. - Send your first email — see Sending via the API.
- Optional: design a template and add a webhook for delivery events.