CAN-SPAM requires a valid physical postal address in every commercial email.
All 8 HC campaign templates and the FCC campaign_template.html only had
'Cheyenne, WY' (no street) -- added the full
'525 Randall Ave Ste 100-1195, Cheyenne, WY 82001' to match the (already-correct)
trucking templates. Audited every Listmonk source/sent campaign + wrapper
templates: all active sends carry address + unsubscribe.
Also: revalidation segments now use hc_revalidation_personal.html with subject
'Let's make sure your Medicare revalidation is handled in time'.