
The short answer: a transactional e-mail is one your system sends to one person, because of something they did or something that concerns them: an invoice, an order confirmation, a password reset link, an account notice. It is not advertising. With Email Center, your application sends those e-mails through our API, from an address on your own verified domain, and every step is logged.
Transactional or marketing
| Transactional | Marketing | |
| What triggers it | Something the customer did, or a fact about their account | Your company, on a date you choose |
| How many at a time | One by one, the moment something happens | A whole list at once |
| Examples | Invoice, receipt, password reset, order confirmation | Newsletter, promotion, product news |
| Unsubscribe link | Not needed, because it is about something the customer did | Required |
| Keep promotions out of service e-mails. An invoice with an offer at the bottom becomes marketing, and then it needs an unsubscribe link and the recipient's consent. For campaigns, see e-mail marketing without burning your domain. |
What Email Center does for you
| Piece | What it is for |
| Verified domain | Send from any address on your domain, with DKIM, SPF and DMARC. See adding a sender domain. |
| Templates with variables | Save the subject and body once, with {{name}}, {{amount}} and whatever else you need. |
| Attachments | Add invoices, receipts and tickets to the send, in base64. |
| A log of every e-mail | Who it went to, when it left and what happened: sent, delivered, bounced, complained or failed. |
| Suppression list | Addresses that bounce for good or complain stop receiving, to protect your reputation. |
| Signed webhooks | A notice at your HTTPS address for every event, so your system can react on its own. |
| Sandbox | Try everything with a Sandbox key: nothing is sent and nothing is charged. |
API or mailbox
You could send these e-mails from a hosting mailbox, but a mailbox is built for people. The API is built for systems: it answers in JSON, reports the status of each e-mail, handles bounces and does not make you keep a mailbox password in your code. The full comparison is in sending by SMTP or through an e-mail API.
| Ready to start? The path is short: turn on Email Center, verify your domain and make your first request. It is all in getting started with Email Center. |
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Want your application to send invoices and confirmations from your own domain? Tell us how many e-mails you send a month and we will prepare a proposal. Ask for a proposal |











