配信 Case Study
DNS & SMTP Configuration
End-to-end email-sending infrastructure for cold outreach — a Mailgun domain wired into Namecheap DNS with SPF, DKIM, MX, CNAME and DMARC all verified, then connected to GoHighLevel through a dedicated sending key for authenticated, inbox-ready delivery.
01Problem
Cold email sent from a domain with missing or wrong authentication lands in spam, and the campaign fails before anyone reads it.
02Solution
A Mailgun domain wired into Namecheap DNS with SPF, DKIM, MX, CNAME and DMARC, then connected to GoHighLevel through a dedicated sending key for authenticated, inbox-ready delivery.
03Tools
04Outcome
5/5DNS records verified
90%+inbox placement targeted after a 2–3 week warm-up
Every record Mailgun asks for passes verification before the first campaign is sent.
