Is there any limit on email sending?

Yes, initially Amazon SES or any SMTP service imposes a per-day email sending limit in order to protect your sending reputation. The process can vary for different providers. Like in the case of the Amazon SES account, you need to send a request to increase your email sending limit before sending your first campaign. Once your email sending limit is increased, you will be able to send 50,000 emails per day and more.

Talking about the inbuilt SMTP of Pabbly Email Marketing, initially, you will have a 500 email per day email sending limit which gradually increases as you start sending emails.

Originally posted by Abhishek on 2022-02-24 (forum thread #4119).