Could not send the verification email — check mail settings
Issuing a verification email created a token, then outbound send failed. Product returns this message (often 503) and deletes the token so a later retry can re-issue.
Why this happens
issueUserVerificationEmail catches sendVerificationResendEmail failures (SMTP, Gmail OAuth, misconfigured from-address, provider reject). Distinct from Cannot send verification email to a banned user and from “already verified.”
Diagnose and fix
1. Admin → Settings → Email — SMTP settings or Gmail XOAUTH2; send a test.
2. Confirm Email from address and delivery mode.
3. Use Emails are not arriving — checklist for spam, DNS, and provider blocks.
4. Retry admin “Send verification” or public resend after mail works.
5. Shorter sibling on public resend fallback: Could not send verification email — try again later.