Email Deliverability (SPF/DKIM/DMARC)

Authenticate the domain, then earn the inbox.

SPF, DKIM and DMARC set up and aligned, a sending-domain strategy that protects your main domain, careful warm-up, and Postmaster data watched so a reputation dip shows up before the complaints do.

The problem

Good emails in the wrong folder.

The reminder went out. The invoice went out. The newsletter went out. None of them were read, because they landed in spam or never arrived at all. Nobody noticed until a customer said they hadn't heard from you.

Usually it isn't one thing. Your website form sends as your domain, so does the CRM, so does the invoicing tool and a newsletter platform someone signed up for years ago. Half of them aren't authenticated. The domain has no DMARC record, so mailbox providers have no instructions and no reason to trust it. And the marketing mail shares a domain with the mail your team sends to customers, so a bad campaign hurts everything.

What we set up

Foundations, then signals.

  • An inventory of senders. Every service that sends email as your domain, found and listed, because you can't authenticate what you don't know about.
  • SPF. One record that covers every legitimate sender, kept within the ten-lookup limit that quietly breaks many SPF records.
  • DKIM. Signing keys set up for each sending service, so receivers can verify the mail really came from you.
  • DMARC. A record that starts in monitoring mode, with reports going somewhere readable, then a policy tightened in steps once every legitimate sender passes.
  • A separate sending domain. Bulk and marketing mail moved to a dedicated domain or subdomain, so your day-to-day mail keeps its reputation.
  • Warm-up. New domains and platforms ramped up gradually, starting with your most engaged contacts, instead of sending the whole list on day one.
  • Monitoring. Google Postmaster Tools set up and explained, so reputation and spam rate are visible before they become a problem.
How we work

Scope, fix, hand over.

1. Look first. We read your DNS, list every service that sends as you, and check current authentication results and blocklists. Nothing changes until we know what is there.

2. Fix in a safe order. SPF and DKIM for every legitimate sender first, then DMARC at monitoring, then the sending-domain changes. DNS changes are recorded, so any of them can be rolled back.

3. Watch, then tighten. DMARC reports and Postmaster data show what is still failing. Once legitimate mail passes consistently, we move the policy towards quarantine and reject.

4. Hand over. A one-page record of every DNS entry and why it exists, and a short guide to reading Postmaster data.

Proof

Part of the day job.

Our founder handles email warm-up and deliverability as part of running GoHighLevel and automation operations for a US-based organisation: DMARC and DKIM set-up, domain connection, dedicated sending domains and Google Postmaster monitoring. It is operating work rather than a showcase build, so there is no public case study yet. We would rather say that than invent one.

Not a fit

When we're the wrong call.

  • You want to send cold email to purchased lists. No authentication setup fixes that, and we won't help you do it.
  • You need a full email-marketing strategy: copy, segmentation, campaign calendars. We fix the plumbing and the sending pattern; content strategy is a different job.
Problems we fix

If one of these sounds familiar, we should talk.

Our emails land in spam.

What we doSPF, DKIM and DMARC set up correctly, sending domains separated from your main one, and Postmaster data watched so you catch reputation problems before your customers do.

Gmail and Yahoo say we need DMARC.

What we doWe publish a DMARC record that starts by monitoring, read the reports, fix whatever is sending unauthenticated mail, then tighten the policy in steps.

Open rates fell off a cliff last week.

What we doWe check authentication, blocklists and Postmaster reputation first, then the sending pattern: a sudden volume jump or a stale list is often the culprit.

What you get

A system, not a pile of parts.

Pick the pieces you need. Most projects start small and grow from there.

  1. SPF, DKIM, DMARC aligned

    Records published for every service that sends as you, checked for alignment, and kept within SPF's lookup limit.

  2. Sending domain strategy

    Bulk and marketing mail on a dedicated sending domain or subdomain, so a campaign problem doesn't drag down the mail your team sends every day.

  3. Postmaster monitoring

    Google Postmaster Tools set up and explained, so domain reputation, spam rate and authentication results are something you can see, not guess.

FAQ

Straight answers.

SPF lists the servers allowed to send as your domain. DKIM signs each message so receivers can tell it wasn't altered. DMARC tells receivers what to do when a message fails those checks, and sends you reports about it.

No, and be wary of anyone who says it will. Authentication is the entry ticket. After that, inbox placement depends on what you send, to whom, and how often. We fix the foundations and show you the signals to watch.

Not safely on day one. We start at monitoring, find every legitimate service sending as you, fix them, then move to quarantine and reject in steps. Jumping straight to reject tends to block your own invoices.

Yes. Our founder handles email deliverability as part of running GoHighLevel operations day to day, including dedicated sending domains, warm-up and Postmaster monitoring.

We don't publish fixed prices. Scope depends on how many services send as your domain and how much clean-up the DNS needs. We look first, then quote. Email info@teqprotech.com.

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