Slow emails in passwordless login

I have a client with only a passwordless email connection. No custom provider, default template, 5 minute OTP expiry. Pretty much all the settings are on defaults.

It was working great up until about 2 weeks ago. Then suddenly login emails took roughly 30 min or longer to get delivered.

I’m not sure what happened, or what to do to fix it. Has anyone else experienced this? Or have any suggestions?

Thanks!

You said that “Pretty much all the settings are on defaults” including the Email Provider (“No custom provider”), The default provider is just for testing purposes because it has some limitations like:

  • Sending no more than ten emails per minute.
  • If you have high bounce rates, the amount of emails you can send may be reduced (or be temporarily blocked). (https://auth0.com/docs/email).

You can fix this setting up your own provider, follow the instructions here: