Mail — templates, queues, SMTP and inbound
HTML templates with fields from the process: client, order, link, legal text. Version, preview and an audit of the change — no code drop for every footer. Send goes through a queue and the SMTP servers the company already has (domains, regions, providers). Inbound: shared mailboxes, POP3/IMAP. Failure of one channel does not stop the rest. Attachments, encryption of sensitive fields and a rate limit — where policy requires it.

