Engineering · Ruzayo
Ruzayo mail systems engineering
Engineering notes on direct recipient MX, LMTP intake, durable mailbox custody, DNS state, and signed event delivery.
Owning the recipient MX path from SMTP greeting to signed event
A boundary-by-boundary design for accepting mail directly, persisting it durably, and projecting minimal signed metadata.Read article →Benchmarking recipient mail infrastructure without hiding queue behaviour
A reproducible test plan for SMTP acceptance, LMTP handoff, durable write, webhook delivery, duplicates, and recovery.Read article →Deploying a recipient domain on Ruzayo safely
A production checklist for tenant credentials, DNS verification, MX cutover, signed webhook validation, mailbox testing, and rollback.Read article →