🛠️ B2C · Module 8 · Lesson 31 of 35

Set up email domains & warmup

Click-by-click: buy a sending domain, create inboxes, add SPF/DKIM/DMARC and warm up so your buyer outreach lands in the inbox.

Setup Guides (click-by-click) ~3 min read

Your funnels and ads generate the leads — but you win the buyers who pay for them with cold email. That only works if your mail lands in the inbox. This is the click-by-click to set up a sending domain, inboxes, authentication and warmup. Do it in Week 2 — warmup takes ~1–2 weeks before you can send for real.

⚡ The 5-minute way

Scrupp provisions pre-warmed sending inboxes with SPF/DKIM/DMARC and warmup already handled, and a deliverability agent watches them around the clock — no registrar, no DNS, no waiting. This guide is the manual do-it-yourself route if you'd rather run your own domain; it's optional, not the default path.

Rule #1: never send cold email from your main brand domain. Use a separate sending domain so a spam flag can never hurt the site buyers check you out on.

Step 1 — Buy a sending domain

At a registrar (Namecheap, Cloudflare, Google Domains), buy a variant of your brand: if your site is getclients.com, buy getclients.io or try-getclients.com.
Keep it close to your real brand so it looks legitimate. One domain is plenty to start; add more only when you scale volume.

Step 2 — Set up email hosting

Create a Google Workspace account (workspace.google.com) — or Microsoft 365.
Add your sending domain: Admin console → Account → Domains → Manage domains → Add domain.
Verify ownership (Google gives you a TXT record to paste into your registrar's DNS).

Step 3 — Create inboxes

Admin console → Directory → Users → Add new user.
Create 1–2 inboxes with real-looking names: john@, j.smith@.
Set a full name and profile photo on each — it looks human and helps deliverability.

Step 4 — Add authentication (SPF, DKIM, DMARC)

These three DNS records prove your mail is legitimate. Without them you land in spam; with them you land in the inbox. Add them at your registrar's DNS — a one-time ~15-minute job.

SPF — add a TXT record on the domain root (@) with value v=spf1 include:_spf.google.com ~all. Only one SPF record per domain.
DKIM — in Google Admin → Apps → Google Workspace → Gmail → Authenticate email, generate a 2048-bit key, paste the TXT record it gives you into DNS, then click Start authentication.
DMARC — add a TXT record on host _dmarc with v=DMARC1; p=none; rua=mailto:you@yourdomain.com. Start gentle with p=none (monitors without blocking).
Verify — DNS can take minutes to a few hours. Check at mxtoolbox.com, or send a test to a Gmail and use "Show original": SPF, DKIM and DMARC should all read PASS.

Step 5 — Warm up before you send

Use a cold-email tool with built-in warmup (Instantly, Smartlead, lemlist). Connect each inbox and enable Warmup.
Let it ramp gradually over ~1–2 weeks — it auto-sends and replies to small volumes between trusted inboxes, building a sending history. Leave warmup on even after you start real sends.

Skip the setup — let Scrupp handle the inboxes Pre-warmed sending inboxes, one-click Gmail/Outlook, auto-warmup and a deliverability agent — done for you in about 5 minutes.

See Email Infrastructure →

Step 6 — Protect deliverability

Cap each inbox at ~20–40 cold emails/day. To send more, add inboxes — never overload one.
Only email verified addresses (your Scrupp list) — bounces undo all the warmup work.
Remove bounces and unsubscribes promptly, and always include an easy opt-out (it's also the law — CAN-SPAM / GDPR).

Order of operations: buy sending domain → create inboxes → add SPF/DKIM/DMARC → warm up → only then start outreach. The warmup clock is why you set this up in Week 2, not the week you want to send.

Next: build a lead quiz funnel.

Next lesson →