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Akash MandJoshen Lim
8a4d2e17fc
## I have read the [CONTRIBUTING.md](https://github.com/supabase/supabase/blob/master/CONTRIBUTING.md) file. YES ## What kind of change does this PR introduce? Bug fix ## What is the current behavior? Currently, the SMTP Host input field in the Project Dashboard (Authentication > Email > SMTP Settings) does not sanitize whitespace. If a user accidentally pastes a hostname with leading or trailing spaces (e.g., " smtp.resend.com "), the DNS lookup fails during the OTP delivery process. This results in the following error in the Auth logs: ```"dial tcp: lookup smtp.resend.com on 127.0.0.53:53: server misbehaving"``` Noticed, the other input fields of Sender details and Host, Username and Password under SMTP Provider settings take leading and trailing whitespaces as well. ## What is the new behavior? Input sanitization has been applied across the SMTP configuration schema. The following fields now utilize .trim() to ensure data integrity: - SMTP_HOST - SMTP_ADMIN_EMAIL & SMTP_SENDER_NAME - SMTP_USER - SMTP_PASS ## Screenshots: Before Fix: <img width="604" height="198" alt="Screenshot 2026-03-09 at 2 04 49 AM" src="https://github.com/user-attachments/assets/76ae23a6-3ad8-4f82-8f0f-ab12f4168e81" /> After Fix: <img width="594" height="194" alt="Screenshot 2026-03-09 at 1 58 48 AM" src="https://github.com/user-attachments/assets/03f64294-0bfe-4fca-a82b-12ee07a6d218" /> This fixes the issue #43529 --------- Co-authored-by: Joshen Lim <joshenlimek@gmail.com>