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How to set up my email domain properly?

Read this carefully — a bad setup can seriously damage your deliverability.

Written by Adrien Moreau Camard
Updated this week

Overview

La Growth Machine will send emails on your behalf using your Gsuite/Gmail, Outlook or SMTP account.
But if a few technical settings are not configured correctly, most of your emails might end up… in spam.

Want maximum deliverability? Keep reading 👇

Key benefits

  • Higher deliverability: avoid spam filters

  • Better authentication: your domain is properly validated

  • Protection: reduced risk of spoofing and impersonation

  • Full visibility: quickly check all DNS records


Understanding DMARC, DKIM, SPF

Why these settings matter

These technical records help email servers verify that your messages are legitimate, truly sent from your domain, and not forged.


Good configuration = better trust = stronger deliverability.

What each record does

SPF — Sender Policy Framework

An authentication method that verifies whether the IP address sending an email is authorized by the domain’s administrators.


In other words: it checks the sender’s IP.

DKIM — DomainKeys Identified Mail

Adds an encrypted signature to the header of every outgoing email to prevent spoofing.


In other words: it proves who is sending the email.

DMARC — Domain-based Message Authentication, Reporting & Conformance

Helps prevent attackers from spoofing your domain by falsifying the “From” address.


In other words: it prevents others from impersonating your domain.

Together, these elements authenticate every email you send.
The better your configuration, the more trust you gain from other servers — and the better your deliverability.


How to check your DMARC, DKIM, SPF ?

It's really easy, our tool provides the tools you need to verify all your records.​

  1. Enter your email domain in the MXToolbox search bar.

  2. The certificate checker will tell you whether each record is present or missing.

If any certificates are missing, they will be marked as “missing,” and you will need to configure them through your provider.

Tip: To further improve your email deliverability, check out this article


FAQs

Why are my emails going to spam?

Most often because SPF, DKIM or DMARC are missing or incorrectly configured.

Do I need to configure all these records?

Yes — SPF, DKIM, DMARC and MX are all required for optimal deliverability.

Is this difficult to set up?

Not really, especially if your DNS provider has a clear interface.

Is this mandatory to use La Growth Machine?

Not mandatory, but highly recommended if you want to avoid spam.

How can I check if my records are valid?

Use MXToolbox — it verifies everything in just a few seconds.

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