Atunu | Cold Email Infrastructure and Deliverability

Emails that land in the inbox, not in spam.

I build and fix cold email systems for B2B startups, SaaS companies, and agencies. Safe domains, clean authentication, and campaigns that keep your pipeline moving.

Setup check: yourdomain.com

What I verify before any campaign goes live
  • SPF recordChecking…
  • DKIM (2048-bit)Checking…
  • DMARC policyChecking…
  • Blacklist statusChecking…
  • Warmup stageChecking…
10+years in email marketing
60+cold email systems built
2,000+inboxes configured
400+domains with DNS set up
20+deliverability problems fixed

What I do for you

Every service is built around Google and Microsoft sender guidelines, CAN-SPAM, and GDPR, so your outreach stays safe and professional.

Cold email infrastructure

Domains, Google Workspace and Microsoft 365 inboxes, and sending tools like Instantly and Smartlead, set up so you can scale without burning domains.

Deliverability audit and recovery

I find why emails hit spam or the promotions tab, then fix authentication, reputation, blacklists, and spam traps.

Campaign setup and management

Sequences, personalization, A/B tests, and reporting, tracked against reply rates and booked meetings, not just opens.

Lead sourcing and hygiene

Targeted B2B lists from Apollo and Sales Navigator, enriched and verified, so bounces stay low and every send counts.

Exclusive Warm-Up Services

New domains and inboxes are treated as high risk by Google and Microsoft, so I never rush them. I run a careful, step-by-step warm-up built around their sender guidelines, with daily monitoring along the way.

You start your first campaign with a healthy sender reputation and a much better chance of landing in the inbox.

What clients say

Real feedback from Upwork clients.

5.0 on Upwork, Top Rated

Cold Email Infrastructure Setup

Deliverability Fixes

Want to see where your emails really land?

Send me your domain and sending setup. I will review authentication, reputation, and warmup, then tell you what to fix first. No pressure, no long pitch.

© Atunu. Cold email and deliverability specialist. Certified in Email Marketing (HubSpot Academy) and Email Deliverability (Klaviyo Academy).