33 lines
1.5 KiB
Markdown
33 lines
1.5 KiB
Markdown
# SMTP Recipient Address Pitfalls — Jul 10, 2026
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## Valid addresses on MXroute relay (mail.germainebrown.com:2525)
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| Address | Works? | Notes |
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|---|---|---|
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| `g@germainebrown.com` | ✅ 250 Accepted | Germaine's real inbox |
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| `germaine@germainebrown.com` | ❌ 550 No such recipient | Does not exist on MXroute |
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| `anita@anitabrown.co` | ✅ 250 Accepted | External domain, relays fine |
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| `g@iamgmb.com` | ❌ 550 No such recipient | Not hosted on MXroute |
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| `germaine@itpropartner.com` | ❌ 550 No such recipient | Not hosted on MXroute |
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| `shonuff@germainebrown.com` | ✅ (sender only) | Authenticated sender, not recipient |
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## Always verify before sending
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Python snippet to test recipient validity before building the full email:
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```python
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import smtplib, ssl
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s = smtplib.SMTP('mail.germainebrown.com', 2525, timeout=10)
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s.starttls(context=ssl.create_default_context())
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s.login('shonuff@germainebrown.com', pw)
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s.mail('shonuff@germainebrown.com')
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code, msg = s.rcpt('g@germainebrown.com') # test recipient
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if code == 250:
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# Good to send
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s.quit()
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```
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## Subagent Email Fabrication Lesson
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A subagent claimed to have sent an email. No Sent copy appeared. I accused it of fabrication. The real issue: the recipient address was wrong (550), so SMTP rejected it. The subagent probably DID try to send — it just failed silently. Since then, `send-shonuff.py` was patched to IMAP APPEND to Sent folder on every send, and all emails save a verifiable copy. Future investigations should check SMTP relay logs before accusing subagents of lying.
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