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Business e-mail on your domain: Google Workspace, Microsoft 365 and Zoho

The DNS records you need for name@yourcompany.com, and what keeps your mail out of spam folders.

Updated 13 October 2026

Why e-mail on your own domain?

An address such as name@yourcompany.com inspires far more trust than a free mailbox, and it stays the same even if you change provider. You get the mail service from a provider such as Google Workspace, Microsoft 365 or Zoho Mail and connect your domain to it with DNS records.

1. Open an account at the provider and add your domain

The provider gives you a verification code (usually a TXT record) to prove the domain is yours. Note it down.

2. Add the DNS records

  • MX: makes incoming mail go to the provider's servers. Old MX records must be removed, or some mail keeps going to the old place.
  • SPF (TXT): says which servers may send mail for you. A domain should have a single SPF record.
  • Verification (TXT): the code from step 1.

At Dilmex, "Quick setup" in your domain's DNS tab prepares these records per provider: choose Google Workspace, Microsoft 365, Zoho Mail or iCloud+ and enter the verification code. Old SPF and MX records are updated and your other records stay.

3. Switch on DKIM

DKIM signs the mail you send. The key is created in the provider's admin console (at Google, a TXT record named "google._domainkey"); add the value in the DNS tab and start signing in the provider's console.

4. Add DMARC

DMARC says what to do with mail that fails SPF and DKIM and sends you reports. The DMARC option in quick setup adds a starter record in monitoring mode (p=none); tighten the policy as the reports look clean.

When do the changes work?

Records usually take effect within minutes, at most a few hours. Start verification in the provider's console; once it sees the records your addresses are ready to use.