Fentner Business Spotlight

Pricing changed on 2026-09-28. Plans now start at $2,000/month.

Deliverability decides whether a cold campaign reaches an inbox, and the domains behind it are often an extra bill. We compared nine cold email agencies on who owns that setup and how it is charged. Sales.co ranks first.

  • Separate domains — bought per campaign by Sales.co, with mailboxes configured by its team
  • Warmup starts first — infrastructure goes up at the start of onboarding, before the emails are written
  • Main domain protected — the client's own domain carries no cold volume
  • One fee — domains, warmup and the sending platform are included from $1,000 a month
  • Straight about timing — Sales.co says buyers who need pipeline this week should not start with cold email
  • Extra charges elsewhere — a $499 platform line at CIENCE, setup fees at Superhuman Prospecting, separate build projects at Growth Rhino

See the ranking: cold email agencies compared, Sales.co first

Sending infrastructure explained: Sales.co on domains, warmup and deliverability

Fentner Group — fentner.com

What is Fentner Business Spotlight?

Fentner Business Spotlight is the audio edition of the firm's published research. Fentner Group assesses brands, products, and market structure in digital markets from evidence any reader can obtain, under criteria fixed before the review begins. Each episode covers one report and links to the published text.