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Email deliverability

We show why your emails aren't reaching the inbox and give you the order in which to fix it.

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In short

What is Email deliverability? The answer in one paragraph.

Roicool's email deliverability audit reviews your sending sources, SPF, DKIM and DMARC records, Google Postmaster Tools data, spam complaint and bounce rates, list hygiene and sending volume; checks compliance with Gmail and Yahoo rules; and delivers a prioritized fix list.

Last updated: 20 October 2026View as Markdown

Your marketing or outbound emails land in spam.

Four problems we solve.

  • Your marketing or outbound emails land in spam.

  • Quotes and invoices you email don't reach customers.

  • You don't know whether you meet Gmail's and Yahoo's sender requirements.

  • You are moving to a new email tool or domain.

Scope

What we do

01Sending sources
01

Sending sources

A list of every system that sends email on behalf of your domain.

Deliverable · Inventory of sending
02Authentication records
02

Authentication records

SPF (a single record, the lookup limit), DKIM for each source, DMARC policy and reports.

Deliverable · Recommended values for
03Reputation and metrics
03

Reputation and metrics

Google Postmaster Tools, spam complaint rate, bounce rate, blocklist checks.

Deliverable · Prioritized fix list
04Sending practices
04

Sending practices

Volume, warm-up, unsubscribe (one-click), list source and hygiene.

Deliverable · Walkthrough call

Price: by scope, written in the proposalAsk for a proposal

From funnel to form: the four steps a lead passes

Funnel: Sent → Inbox → Opened → Reply. No measured case figure for this service yet; the form on the phone shows example values.

  1. Sent
  2. Inbox
  3. Opened
  4. Reply
Example: a landing page and its form

Cases

Results, with their method. One case from this service.

All case studies
  • Serkan Hezar
  • Medical tourism

Performance marketing optimization: 150% increase in appointments

With our data-driven performance marketing strategy for our partner in the healthcare sector, Serkan Hezar Clinic, we maximized lead quality without increasing the advertising budget and increased the number of actual appointments by 150%.

Read the Serkan Hezar case

Approved appointments entering the clinic's system; advertising budget unchanged · 3-month optimization period

Team and proof

The team that does the work, the result we measured. Our rating and our badges can be checked.

Clutch reviewsClutch
5.0★★★★★8 verified reviews

“Roicool knew what they were doing and were ready to answer our questions with their expertise anytime.”

Sena Miskioğlu, SESTEK Marketing Manager ·
Clutch profile
Case result

150% Approved appointment increase

Approved appointments entering the clinic's system; advertising budget unchanged · 3-month optimization period

Read the Serkan Hezar case
Team

Strategy, content, development and measurement in one team.

projects
13
cases
9
Semih BayındırSenior Software Engineer & Tech Lead · Owner of this service

Frequently asked questions

  1. What does an email deliverability audit look at?

    SPF, DKIM and DMARC records, the reputation of the sending domain and IP, Google Postmaster Tools data, spam complaint rate, list hygiene, sending volume and content structure.

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  2. Why do our emails land in spam?

    The most common causes are missing or incorrect authentication records, high bounce and complaint rates, sudden jumps in volume, unverified lists and content that triggers spam filters. The audit shows which of these apply to you.

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  3. How long does the audit take?

    Once we have access, we usually deliver the report within a few business days and walk you through it on a call.

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  4. Do you set up DMARC?

    The audit report gives the correct records and the order to apply them in; if you have DNS access, your team can set them up with us, or you can hand the work over to us.

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  5. Should marketing email and outbound use the same domain?

    For high-volume outbound, a separate sending domain protects the reputation of your main domain. The report recommends which domain to use for which kind of sending.

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Question not here? Write to us

Clutch5.08 reviews (5.0 out of 5) (opens in a new tab)

Let’s start

Let’s find where to start, together.

In a 30-minute intro call we listen to your goals and agree on the right first step.