API Documentation
Rate Limits
SendLayer API rate limits
SendLayer API rate limits are applied to the API key used to make the request.
Email Sending
SendLayer API limit usage varies depending on your account plan. Below are the available plans and their respective limits.
SendLayer Plan | Emails/minute | Emails/hour | Emails/day |
---|---|---|---|
Trial | 10 | 25 | 50 |
Starter | 50 | 300 | 500 |
Business | 120 | 500 | 1000 |
Growth | 200 | 1000 | 2500 |
See our detailed guide to learn more about SendLayer rate limits
Email Recipients
When sending emails to multiple recipients, the following limits apply to all users regardless of account type.
- Send To: 10 email addresses
- CC: 10 email addresses
- BCC: 5 email addresses
Email Size
When sending an email, the maximum file size per email is 10 MB. This includes both the content and additional email attachments.