Free business email in Mexico: create name@yourbusiness.com.mx today

Mexican PyMEs deal with SAT, CFDI invoices and clients who expect a facturación email that matches the company. Sending invoices from a Gmail undermines all of it. This guide sets up contacto@tuempresa.com.MX (Mail Exchanger — where incoming email is delivered) (or .mx) with free mailboxes, walking through the domain, DNS and connecting Outlook and your phone.

Quick answer

Register tuempresa.com.MX (Mail Exchanger — where incoming email is delivered) or tuempresa.mx with any accredited registrar, create a free OquMail workspace, add the domain, paste four DNS records, create mailboxes. Up to 15 mailboxes are free with no card, so the only cost is the domain.

Domain choice: .com.mx, .mx or .com

Mexican domains are administered by NIC México (Registry .MX). Both .com.mx and direct .mx are open to anyone with no documents, and are sold by Mexican registrars such as Akky and by GoDaddy, Namecheap and others. A .com.mx is what most Mexican businesses use; .mx is shorter and popular with newer brands. A .com is common for companies selling to the US.

• .com.MX (Mail Exchanger — where incoming email is delivered): the standard for Mexican businesses; open to anyone
• .MX (Mail Exchanger — where incoming email is delivered): shorter; register it alongside .com.mx to protect the brand
• .org.MX (Mail Exchanger — where incoming email is delivered): non-profits
• .com: sensible for exporters and cross-border e-commerce

Why Mexican clients trust a domain address

CFDI invoices are delivered by email, and a client's accounts department expects the XML and PDF to come from facturacion@tuempresa.com.MX (Mail Exchanger — where incoming email is delivered), not from a personal address. Suppliers to larger companies, Mercado Libre sellers moving to wholesale, consultants, and agencies all face the same check. A domain address also keeps ventas@ with the company when staff leave, and lets you split billing, sales and support cleanly.

Step by step

1. Register tuempresa.com.MX (Mail Exchanger — where incoming email is delivered) (and .mx if you like) with an accredited registrar.
2. Create a free OquMail workspace at oqumail.com. No card.
3. Add the domain in the dashboard and copy the four DNS records.
4. In the registrar’s DNS panel add the MX, SPF, DKIM and DMARC records.
5. Click Verify. The live check shows which record is still missing.
6. Create mailboxes: contacto@, facturacion@, ventas@ and one per person, up to 15.
7. Send a test from webmail, then add the account to Outlook or the phone mail app with the settings below.

The four DNS records OquMail needs

Mexican hosts often bundle cPanel email and pre-set an MX. Delete it before adding OquMail's. Keep only one TXT starting with v=spf1 on the root, and leave MX and TXT unproxied on Cloudflare.

• MX — host @, value mail.oqumail.com, priority 10
• SPF (TXT at @) — v=spf1 MX (Mail Exchanger — where incoming email is delivered) a:mail.oqumail.com ~all
• DKIM (TXT at your selector ._domainkey) — v=DKIM1; k=rsa; p=… (the exact key is shown in your OquMail dashboard)
• DMARC (TXT at _dmarc) — v=DMARC1; p=none; rua=mailto:dmarc@yourdomain.com

OquMail connection settings

• Incoming (IMAP): mail.oqumail.com, port 993, SSL/TLS
• Outgoing (SMTP): mail.oqumail.com, port 587, STARTTLS
• Username: your full email address (you@yourdomain.com)
• Password: the same password you use for OquMail webmail

What it costs

The domain is a yearly fee at the registrar, payable by card, OXXO deposit or transfer at most Mexican registrars. The email is free: OquMail's free plan needs no card and includes 15 mailboxes, 3 domains, 5 GB per mailbox, webmail, IMAP/SMTP, delivery logs and a send API. That removes the per-user monthly charge of Google Workspace or Microsoft 365 for a small PyME.

Pitfalls common in Mexico

• Bundled hosting email with no DKIM: CFDI emails land in spam and clients say they never received the invoice.
• Telmex, Telcel and cable connections block outbound port 25. Use port 587 with STARTTLS.
• Choosing SSL on port 587 in Outlook. It must be STARTTLS.
• Accented mailbox names. Keep addresses plain ASCII and put the accented name in the display name.
• Sending CFDI from a personal Gmail while the website shows a domain address: filters flag the mismatch.

Common questions

Do I need .com.mx or is .mx enough?

Either works. Most established businesses use .com.MX (Mail Exchanger — where incoming email is delivered); if you register the shorter .mx, add both to one OquMail workspace.

Can my accounting software send CFDI through it?

Any software that sends via SMTP can use the settings above with your facturacion@ mailbox. Developers can also use the OquMail send API with a Bearer key.

What are the limits?

15 mailboxes, 3 domains, 5 GB per mailbox, no expiry.