Email Deliverability Setup: Stop Sales Emails Landing in Spam Folders

Driving Business Connections, Fuelling Growth

Email deliverability setup

Stop Losing Replies to the Spam Folder

If your outreach emails are landing in spam, the problem is almost never your copy — it's your technical foundation. A domain with poor authentication, a mailbox that's been used at too high a volume before it was warmed, or a list with too many invalid addresses will all damage your sender reputation quietly and consistently. We set up and stabilise your email deliverability so your messages land in inboxes, your domain reputation stays protected, and your outbound campaigns have a genuine chance of generating replies.

What we cover in an Email Deliverability Setup

- SPF (Sender Policy Framework) — a DNS record that tells receiving mail servers which servers are authorised to send email on behalf of your domain. Missing or incorrect SPF is one of the most common causes of emails being rejected or marked as spam.
- DKIM (DomainKeys Identified Mail) — a cryptographic signature attached to outgoing emails that proves the message hasn't been tampered with in transit. Required by major providers like Google and Microsoft for reliable inbox placement.
- DMARC (Domain-based Message Authentication, Reporting & Conformance) — a policy layer on top of SPF and DKIM that tells receiving servers what to do with emails that fail authentication, and sends you reports on failed delivery attempts. Critical for domain protection as well as deliverability.
- Domain and mailbox setup guidance  — recommendations on sending domain structure (using a subdomain for outreach rather than your primary domain, to protect it if reputation issues occur)
- Warming plan — a structured ramp-up schedule for new mailboxes, increasing send volume gradually over 4–6 weeks to build positive sender reputation before scaling outreach
- Bounce and list hygiene guidance — how to validate lists before sending, reduce hard bounce rates, and manage unsubscribes to protect reputation

What you'll get from the Deliverability Setup

- Full SPF, DKIM, and DMARC configuration — implemented and tested, not just advised. We verify each record is active and correctly formatted.
- A deliverability health report — current inbox placement rate, spam score assessment, and blacklist check across major blacklists
- Domain and mailbox structure recommendations  — how to separate cold outreach domains from your main brand domain to protect your primary reputation
- A 4–6 week warming schedule  — a day-by-day send volume plan for new mailboxes, with rules for what content to send during the warming period
- List hygiene recommendations — which validation tools to use, acceptable bounce rate thresholds, and how to clean your existing list before launching campaigns
- Monitoring basics — which metrics to watch (open rate, bounce rate, spam complaint rate, DMARC reports) and what thresholds should trigger a review

Who this is for

This service is essential for any B2B team running outbound email campaigns — or planning to. It's particularly urgent when:

- Emails are going to spam or being blocked entirely, despite low send volumes
- Open rates have dropped sharply without an obvious explanation
- A campaign was launched too quickly without proper warming and domain reputation suffered
- You're using your primary company domain for cold outreach (and it's now at risk)
- You've recently moved to a new email provider or a new sending platform (GHL, Instantly, Lemlist, Mailshake, etc.) and haven't reconfigured authentication records
- You're scaling outreach volume and need to do it without triggering spam filters or blacklists
- Your DMARC policy is not set, or set to "none", leaving your domain unprotected

Best fit: B2B teams sending outbound email campaigns, using tools like GoHighLevel, Instantly, Lemlist, Outreach, or standard SMTP from a business email account.

How the Deliverability Setup works — 3 stages over 1–2 weeks

Stage 1 — Audit (2–3 days). We run a full deliverability audit: SPF/DKIM/DMARC status, blacklist checks, existing sending reputation, mailbox configuration review, and an assessment of your current list hygiene. We identify every technical issue affecting your inbox placement and prioritise fixes by impact.

Stage 2 — Configuration (2–3 days). We implement the fixes: DNS record creation or correction (SPF, DKIM, DMARC), mailbox configuration, sending domain structure. We test every record after implementation to confirm it's working correctly. We provide the warming schedule and list hygiene recommendations tailored to your send volumes and tools.

Stage 3 — Handoff and monitoring guidance (1 day). We run a 60-minute session covering how to monitor your deliverability ongoing, what the DMARC reports mean, and what thresholds should trigger a review. We document everything — DNS records, configuration rationale, and monitoring checklist — so your team can maintain it independently.

Results you can expect

Based on B2B outbound teams that have implemented proper deliverability foundations:

- Inbox placement improving from 40–60% to 85–95% within 4–6 weeks of implementing authentication records and completing a proper warming process
- Hard bounce rates dropping below 2% after list validation and hygiene cleaning
- Spam complaint rates below 0.1% with proper DMARC policy and unsubscribe management in place
- Domain protection — a correctly configured DMARC policy at p=quarantine or p=reject stops malicious actors from spoofing your domain in phishing emails, protecting both your reputation and your prospects
- Sustainable scale  — properly warmed mailboxes and clean lists allow volume increases without reputation damage, enabling consistent outreach at scale

Global Collaborations UK Ltd was founded in 2019. Our leadership brings 40+ years of combined sales and growth experience across multiple sectors.

1–2 weeks

Setup to inbox improvement

85–95%

Inbox placement after proper setup

100+

B2B campaigns supported

90%

Client retention
rate

SPF, DKIM, and DMARC records typically propagate and take effect within 24–72 hours of being added to your DNS. Inbox placement improvement is usually noticeable within the first week of sending from a properly configured domain. If a mailbox also needs warming, full improvement takes 4–6 weeks as the warming schedule builds sending reputation gradually.

Pricing is bespoke and depends on the number of domains and mailboxes involved, the current state of your setup, and whether list hygiene work is also required. Most setups land in the Foundation tier — £3k–£8k one-off. We scope and quote after a short call.

Yes. We work with all major outbound platforms including GoHighLevel, Instantly, Lemlist, Mailshake, Outreach, and standard SMTP configurations. The DNS authentication records (SPF, DKIM, DMARC) are set at the domain level and apply regardless of which sending platform you use. Platform-specific sending settings are covered as part of the setup.

Access to your domain's DNS management panel (the place where you manage DNS records — usually your domain registrar or hosting provider like IONOS, GoDaddy, or Cloudflare), details of which email platform you're sending from, and a sample of your sending volume and frequency. A 60-minute kick-off call covers everything we need to scope the work.

We provide a monitoring checklist and thresholds so your team can spot issues early. The most common causes of degradation after a clean setup are list quality (bounces creeping up as lists age) and sending volume increasing too quickly without a corresponding warming period. The handoff documentation covers both scenarios with clear actions to take.

Want your outbound emails to land in inboxes before you scale?

A 30-minute call is enough to diagnose your current deliverability setup and tell you what's putting your campaigns at risk.

Stop guessing. Get your deliverability set up properly

Phone: +44-1522-301-002
Direct: +44-7450-301-002
Email: hello@gcuk.group

Related Services

Sales Team Design (Support)

In partnership with

AccessAbilities Expo
ABGI-UK
Tedom

Trusted by

Tedom
ABGI-UK
AccessAbilities Expo
Aspire
AFCA
ENGC
Clarke
3Sigma
Petaurum
SHU

Professional Memberships & Accreditations

We maintain active membership in leading UK and European business organizations, ensuring we stay current with best practices, regulations, and emerging opportunities for our clients.

Institute of Directors
Federation of Small Businesses
European Small Business Alliance
UK Fresh Produce Network
Lincolnshire Chamber of Commerce
UK-Cyprus Enterprise Council
 Information Commissioner's Office