20 lines
1.2 KiB
Plaintext
20 lines
1.2 KiB
Plaintext
---
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title: Transactional Emails
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description: Send emails via API
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icon: Send
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---
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Transactional emails are emails sent directly through the API. They are typically used for one-to-one communication, such as password resets, order confirmations, and notifications.
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## Sending with attachments
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Plunk supports sending attachments with transactional emails. By default, you can include up to 10 attachments per email with a maximum total size of 10MB. Attachments should be base64 encoded and included in the `attachments` array when sending the email via the [/v1/email/send](/api-reference/public-api/sendEmail) endpoint.
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Self-hosters can raise these limits via environment variables to match the capacity of the underlying email provider (AWS SES supports up to 40MB per message by default):
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| Variable | Default | Description |
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| `MAX_ATTACHMENT_SIZE_MB` | `10` | Maximum total attachment size in megabytes |
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| `MAX_ATTACHMENTS_COUNT` | `10` | Maximum number of attachments per email |
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## Sending from a template
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You can also send transactional emails using a [template](/concepts/templates) you have created in the dashboard. This allows you to reuse the same design and content for multiple emails, while still personalizing them with contact data. |