- Explicit SMTP flow (dial -> EHLO -> STARTTLS -> AUTH -> MAIL/RCPT/DATA)
with errors naming the refusing step (also logged as smtp_step)
- EHLO with the sender's domain instead of "localhost"
- Envelope gets the bare address; "Name <addr>" stays in the From header
(was rejected as invalid MAIL FROM)
- Date and Message-ID headers, RFC 2047 subject, quoted-printable body
- SMTP_SKIP_VERIFY / admin switch for self-signed certificates;
SMTP checkboxes are switches now
- Tests against a fake SMTP server (STARTTLS, 451, display names)
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
sandrodachandClaude Opus 5.5
ce321ce579