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SupabaseS
Supabase•2mo ago•
2 replies
alexandre_dvd

429 "email rate limit exceeded" on /signup

🤷otherauth
During a user signup attempt to /signup, the API returned a 429 error with message "email rate limit exceeded". I believe the confirmation email flow hit an email-sending rate limit for this project.

Steps already taken:
- Verified the exact log entry in the Dashboard → Logs (auth).
- Waited briefly and retried (not repeatedly).
- Confirmed this occurs for standard email confirmation flows.

Impact:
- Prevents users (or testers) from completing sign-up flows when the project hits this email rate limit.
- Blocks development/testing of auth flows.

Here is the log :
Relevant log entry (raw): {"auth_event":{"action":"user_confirmation_requested","actor_id":"xxxx","actor_username":"xxx [blocked]","actor_via_sso":false,"log_type":"user","traits":{"provider":"email"}},"component":"api","error":"429: email rate limit exceeded","level":"warning","method":"POST","msg":"429: email rate limit exceeded","path":"/signup","referer":"http://localhost/","remote_addr":"176.150.xxx.xxx","request_id":"9a9f051c81990197-CDG","time":"2025-12-06T21:54:07Z"}
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