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 and MX records
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.
MX Record — Mail Exchanger Record
Specifies which mail server is responsible for receiving emails for your domain.
In other words: it tells other servers where incoming emails should be delivered.
Together, these four 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 and MX records
Using MXToolbox
Good news: it’s super easy.
MXToolbox provides dedicated tools to check all of your DNS certificates.
Enter your email domain in the MXToolbox search bar.
The tool will show you whether each record exists or is missing.
Then select the specific record you want to verify:
Checking SPF
Checking DKIM
Checking DMARC
FAQs
Why are my emails going to spam?
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?
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?
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?
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?
How can I check if my records are valid?
Use MXToolbox — it verifies everything in just a few seconds.