Emails that could actually be delivered

Country-aware email generation for all 27 — real local first-name and surname banks, romanised to ASCII for Bulgarian and Greek so the local part is deliverable, regional providers (wp.pl, web.de), and a corporate category that builds the address on a company-derived domain (anna.schmidt@mueller-bau.de).

Also shipped in the same stretch: a custom-regex generator that inverts a pattern you supply into matching data, for the SKUs and ticket IDs no catalogue will ever model. The escape hatch that stops "we don't support that" being the end of the conversation.