feat(studio): set email rate limit to 30 when enabling custom SMTP (#40638)

apps/studio/components/interfaces/Auth/SmtpForm/SmtpForm.tsx

@@ -149,7 +149,15 @@ export const SmtpForm = () => {
 
   const onSubmit = (values: SmtpFormValues) => {
     const { ENABLE_SMTP, ...rest } = values
-    const payload = ENABLE_SMTP ? rest : defaultDisabledSmtpFormValues
+    const basePayload = ENABLE_SMTP ? rest : defaultDisabledSmtpFormValues
+
+    // When enabling SMTP, set RATE_LIMIT_EMAIL_SENT to 30
+    // When disabling, backend will handle resetting to default
+    const isEnablingSmtp = ENABLE_SMTP && !isSmtpEnabled(authConfig)
+    const payload = {
+      ...basePayload,
+      ...(isEnablingSmtp && { RATE_LIMIT_EMAIL_SENT: 30 }),
+    }
 
     // Format payload: Convert port to string
     if (payload.SMTP_PORT) {

apps/studio/components/interfaces/Auth/SmtpForm/SmtpForm.utils.ts

@@ -27,6 +27,5 @@ export const generateFormValues = (config?: Partial<AuthConfig>): Partial<AuthCo
     SMTP_PASS: '',
     SMTP_PORT: config?.SMTP_PORT ?? '465',
     SMTP_MAX_FREQUENCY: config?.SMTP_MAX_FREQUENCY ?? 60,
-    RATE_LIMIT_EMAIL_SENT: config?.RATE_LIMIT_EMAIL_SENT ?? 30,
   }
 }