Email bounce: Domain has exceeded the maximum defers
Updated 3 months ago
To help control and prevent spam, our server automatically monitors the number of recently bounced or deferred emails sent. Once you reach the maximum limit, any further emails you try to send will be rejected by the system until at least 60 minutes have passed.
This error is commonly caused by the following:
The first—and most common—reason is that the SPF option is enabled for your domain, but you haven't included our email service in it. Check whether this is the case by following the SPF and DKIM Configuration guide.
Another possibility is that a malicious individual—or an automated bot—gained access to your email account and is sending emails while impersonating you or one of your colleagues. If this is the case, you should change the password for the compromised email account as soon as possible. To check this, we recommend using the Monitor Sending tool.
If you've checked both cases but neither has helped resolve your issue, please contact us so we can investigate it manually.