Jason Staack f7a53e60da fix: SMTP TLS logic was inverted — plain SMTP incorrectly used STARTTLS ...

When use_tls=false, the old logic set start_tls=true for any port != 25,
which broke plain SMTP servers like Mailpit. Now:
- Port 465: implicit TLS
- use_tls=true on other ports: STARTTLS
- use_tls=false: plain SMTP (no TLS)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

2026-03-09 21:03:54 -05:00

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