DeliverabilityCold email
Cold email deliverability in 2026: the complete setup
The end-to-end deliverability setup for cold outreach in 2026: authentication, warmup, sender-requirement compliance, and a safe volume ramp.
June 30, 2026 · 8 min readWarmupDeliverability
How email warmup actually works (and why 30 days)
What email warmup really does, the reputation signals it builds, and why a new cold-email inbox needs about 30 days before it can send at volume.
June 16, 2026 · 7 min readAuthenticationDNS
SPF, DKIM, and DMARC explained for cold outreach
A plain-English guide to SPF, DKIM, and DMARC for cold email, with example DNS records and the p=none to p=reject policy journey.
June 2, 2026 · 8 min read