Email testing services: deliverability, SPF, DKIM and DMARC
We test that the email your product sends reaches the inbox, passes authentication, and cannot easily be faked by someone using your domain. Then we test the emails themselves: the right content, working links and attachments, how they display in each email client, and that they are sent at the right moment.
What one round covers
- AuthenticationSPF, DKIM and DMARC for every sender
- DeliverabilityInbox or spam, per mailbox provider
- SpoofingIs mail forged from your domain rejected?
- Your emailsContent, links, rendering across clients
What we test
A DNS checker reads your records. We test what actually happens when your systems send.
SPF, DKIM and DMARC
Checked against every service that sends as your domain: your app, CRM, newsletter and support tools.
Deliverability
Test sends that confirm messages arrive, and land in the inbox rather than spam.
Spoofing resistance
We send forged mail from your domain to test mailboxes we agree with you, and check it is rejected.
Spam and phishing filtering
If your product receives email, we test that its filtering stops spam and spoofed messages.
Transactional emails
Sign-up, reset, invoice and alert emails: the right content, working links and attachments.
Rendering across clients
How your emails display in the main desktop, web and mobile email clients.
Where email setups usually break
Illustrative examples of defect patterns we test for. Not client data.
The new tool nobody added
Marketing starts sending from a new platform that is not in the SPF record, and its campaigns quietly land in spam.
A policy that only watches
DMARC is set to p=none, so mail forged from your domain is not blocked by policy and can reach your customers.
The reset link that points to staging
Password-reset emails send fine, but the link opens a test environment instead of your product.
How an email test runs
A 30-minute call
What you send, from which systems, and what is going wrong.
Proposal
Scope and a fixed price in writing, within 2 business days.
NDA and DPA
Signed before we touch your domains or mailboxes.
Tests
Record checks, test sends, spoofing tests and your email flows.
Report
Each finding with the evidence and the change that fixes it.
Independent testers, not your email vendor
Your email platform tests its own servers. Nobody tests how your app, your CRM and your newsletter tool behave together on your domain. That gap is where mail gets lost or forged.
- A software testing company since 2018, 50+ engineers
- NDA and DPA from day one, under our ISO 27001 system
- No phishing of your staff: spoofing tests go only to agreed test mailboxes
What email testing costs
A one-off email test is a fixed price, written into the proposal after the first call. It depends on how many systems send as your domain and how many email flows your product has.
Want email checks on every release as part of ongoing QA? That runs at our hourly rate of EUR 20-45. See managed testing services.
Email testing: common questions
What is email testing?
Checking that email sent by your systems is authenticated, delivered to the inbox, hard to forge, and correct in content, links and timing.
What do SPF, DKIM and DMARC do?
SPF lists the servers allowed to send for your domain, DKIM signs each message, and DMARC tells receiving servers what to do with mail that fails them, and sends you reports.
Is an online DMARC checker not enough?
A checker reads the records. It cannot tell you whether your CRM signs its mail, whether forged mail is really rejected, or whether your reset emails work.
How much does email testing cost?
A one-off test is a fixed price in the proposal. Ongoing email checks inside a QA engagement are billed at EUR 20-45 per hour.
Will you send phishing emails to our staff?
No. We do not run social engineering campaigns. Spoofing tests are sent only to test mailboxes we agree with you in advance.
Do you test how our emails look in different clients?
Yes. We check your emails in the main desktop, web and mobile email clients and report what breaks. No DNS access is needed for any of the tests.
Find out where your email goes
Tell us which systems send as your domain and what is going wrong. You get a fixed price in writing within 2 business days.