Transactional marketing outbound separation explained: how to isolate domains, IPs, and reputation so one bad send never sinks the others.
BIMI for cold email senders: what a VMC costs, the setup steps, and when a verified logo actually moves reply rates.
ARC email authentication explained - how the Authenticated Received Chain preserves SPF and DKIM when mail is forwarded, and why cold senders should care.
DMARC quarantine policy explained - how to move from p=none to quarantine to reject without losing legitimate mail, reading rua reports, and using pct.
The three email-auth records every cold sender needs in 2026, set up correctly - with the DMARC policy that actually passes enforcement.
Master email deliverability in 2026. Technical authentication, spam traps, blacklists, warm-up strategies—everything you need for 87%+ inbox placement.
