Email sending limit is always controlled as hourly, daily and monthly allowed volume. Your account has to qualify for the speed upgrade on our platform, The email speed upgrade is based on the quality of email content, bounce emails, spam complaints mark, domain reputation and most importantly manual review by our email delivery experts.
Our system automatically performs most of the checks, and manage your email sending speed. In case you need some immediate upgrade, we recommend you to raise a support ticket and our email delivery expert will help to meet your business need.