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 PlanEmails/minuteEmails/hourEmails/day
Trial102550
Starter50300500
Business1205001000
Growth20010002500
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.