If your account has reached the email send limit, you will receive the following error message: "ERROR:5.7.1:550 Outbound Mail Refused - YOUR_IP_ADDRESS". The following restrictions apply when sending emails from a Road Runner internet connection:
- Road Runner email send limit - max 1,000 recipients per day per IP
- Road Runner other SMTP limits - max 5mb per message
- Road Runner email-outbound policy - Road Runner Help & Member Services Site Selector
- Road Runner SMTP restriction expiry method - the suspension is automatically lifted after 24 hours
