All transactional/worker senders built multipart/alternative (or mixed)
messages with ONLY an HTML part. A single-part multipart/alternative is
malformed and HTML-only mail is a spam-score signal -- the same class of
deliverability bug that hurt the campaign pipeline, but on the telecom /
filing / customer-transactional path (499-Q reminders, RMD/FCC filing
review links, intake/completion/delivery emails, commissions, etc).
- worker_email.send_worker_email: auto-derive plaintext from HTML when
caller omits text= (fixes the shared helper for all current+future use)
- 16 rolled-their-own senders in scripts/workers/** + scripts/formation/
document_delivery.py: attach html_to_text(...) plaintext sibling before
the HTML part (job_server + document_delivery wrap text+html in an
alternative sub-part so PDFs still attach to the mixed root)
- api/src/email.ts: add dependency-free htmlToText() and default
sendEmail text to it (fixes checkout/webhook HTML-only sends)
Verified: all py files compile + import at runtime, api tsc passes,
htmlToText handles hrefs/lists/entities, 11 plaintext unit tests pass.
Telecom campaign 407 (Jun 8) was HTML-only + sent in the DKIM-broken
window -> 384 sent / 0 clicks (same junked-mail signature).
Two bugs found tracing Mitchell Allen's batch CB-95BA6C90 (5 DOT services, card):
1) Worker authorization/signing-link/status emails were sent via
smtplib.SMTP('localhost', 25), which has no MTA in the workers container ->
every send failed '[Errno 111] Connection refused', so customers never got
their e-sign links and orders sat 'awaiting client signature' forever. Routed
all 9 hardcoded localhost:25 sites (state_trucking, mcs150_update, boc3_filing,
hazmat_phmsa, mailbox_setup, dot_esign, completion_emails) through the
authenticated SMTP relay (SMTP_HOST/PORT/STARTTLS/login) + added a shared
worker_email.send_worker_email helper.
2) The ERPNext Sales Order for compliance/compliance_batch was only created in
the /checkout/create-session endpoint, but CARD orders confirm via the Stripe
WEBHOOK -> handlePaymentComplete, which never created the SO. Result: every
webhook-confirmed order had erpnext_sales_order=NULL and workers logged
'Sales Order not found 404' then built from PG. Added idempotent
ensureComplianceSalesOrder() to handlePaymentComplete so ALL payment methods
(card-webhook, PayPal, crypto) create + link the SO.
