These hourly and daily email sending limits are established independently and vary from one email provider to another. Not all outgoing SMTP mail servers were created equal, and how much email you can send each hour or each day will be determined by the particular outgoing SMTP mail server that you use to relay your messages.Įach ISP, web hosting, and free email provider establishes its own email sending policy which outlines specifically how much email you can send through their outgoing SMTP mail server per connection, per hour or per day.
