Custom Domain Email Without Google Workspace or 365

· · 6 min read

Quick answer: To set up a custom domain email without Google Workspace or Microsoft 365, you can use specialized email providers like Domailo, which charge a flat monthly fee for your entire organization instead of charging per user, offering a modern webmail and simple configuration.

For a long time, small businesses believed there were only two ways to professionalize their communication: pay individual monthly fees for Google Workspace or Microsoft 365, or rely on sluggish, outdated web hosting panels.

This belief keeps many companies tied to expensive tools or free accounts that look unprofessional. Understanding what business email is and why your company needs it begins with recognizing that email is an infrastructure service independent of office productivity suites.

Why look for alternatives to Google Workspace and Microsoft 365?

The main reason to look for alternatives is the mismatch between the pricing models of tech giants and the budget realities of small businesses. Both charge per active user, which increases operational costs with every new hire.

In addition, Google and Microsoft sell entire software ecosystems. Their pricing bundles spreadsheets, presentations, text editors, cloud storage, and video conferencing tools. If your team only needs to send and receive messages from @suaempresa.com, you end up paying for dozens of apps that no one ever opens.

Another common side effect is cutting corners on security: to avoid paying R$ 35 or R$ 50 per month per license, many companies create a single account (such as contact@ or sales@) and share the password across several team members. This practice creates security risks and makes individual access control impossible.

Using an @gmail.com address might seem like a practical free workaround, but a @gmail email lacks credibility for business and looks unprofessional to clients and partners.

How does an independent professional email service work?

Internet email relies on open standards established decades ago by international bodies. To receive messages on your own domain, your business only requires three components:

  1. A registered domain (for example, with your domain registrar).
  2. A reliable business email provider.
  3. Correct DNS records to direct traffic and verify outbound message authenticity.

This is where Domailo comes in. Instead of requiring you to purchase an entire productivity suite, Domailo provides exactly what small teams need: professional email on your company domain, intuitive browser-based management (webmail), and flat pricing per organization rather than per user.

If your operation genuinely needs desktop applications like local Outlook, advanced Office integrations, or enterprise cloud storage with real-time document collaboration, Microsoft 365 and Google Workspace remain solid options. However, if your goal is simply keeping team communication organized and professional on a reasonable budget, paying for full office suites is unnecessary.

Comparison: Domailo versus per-user office suites

To see how Domailo compares with traditional setups, review the side-by-side comparison below:

Feature Google Workspace / Microsoft 365 Traditional web hosts (cPanel) Domailo
Billing model Per user (scales with team size) Bundled into website hosting Per organization (flat plan price)
Primary focus Office suite and team collaboration PHP/MySQL website hosting Business email and team management
Reading interface Modern webmail / native apps Outdated webmail (Roundcube) Modern browser webmail (light/dark mode)
Shared mailboxes Complex or requires extra licenses Manual password sharing Assign members to mailboxes with unique logins
Predictability Cost rises with every team hire Frequent deliverability issues Flat monthly or annual cost

At Domailo, plans are structured around your actual operational needs. The Startup plan costs US$ 5/month (or US$ 50/year paid upfront) and includes 2 users, 2 mailboxes, and 1 domain, with 10 GB of shared organization storage. For growing teams, the Essential plan costs US$ 9/month (or US$ 90/year) and includes 5 users, 5 mailboxes, 3 domains, and 50 GB of shared storage.

Step by step: custom domain email without Google Workspace

Setting up an independent email solution is a straightforward process requiring minimal technical steps. You do not need any coding knowledge to complete it.

1. Register your domain

The first step is owning your web address (such as mycompany.com). If you registered your domain in Brazil, you likely used Registro.br. Check our guide on domains on Registro.br and how to use them with business email to understand the specific details of that platform.

One technical note: the free DNS manager on Registro.br does not accept underscore characters (_) in record names, as documented in the Registro.br technical documentation. Because TXT ownership verification and DKIM cryptographic signatures frequently contain underscores, the recommended approach is delegating domain DNS management to Cloudflare (on their free plan). You simply update the nameservers at your domain registrar and manage records on Cloudflare without restrictions.

2. Create your account and connect your domain

Inside Domailo, add the domain you own in the administrative panel. The system immediately generates the DNS records required to route incoming messages and protect them from ending up in spam folders.

3. Configure essential DNS records (MX, SPF, and DKIM)

For any email service to deliver messages reliably outside major platforms, publishing these DNS records is essential:

  • MX Record: tells the internet which mail server handles incoming messages for your domain.
  • SPF Record: defines which mail servers have permission to send messages on behalf of your domain, under RFC 7208.
  • DKIM Record: adds a cryptographic signature to outbound messages to prove content was not tampered with during transit, according to RFC 6376.

Setting up these three records is a standard industry requirement today. Major inbox providers like Google require these safeguards before accepting messages from business domains, as outlined in Google's Email Sender Guidelines.

4. Create mailboxes and assign users

Once your domain is verified, create your necessary email addresses (such as contact@suaempresa.com and your.name@suaempresa.com).

In Domailo, you can invite team members via email or by sharing a direct link. Each person creates their own login with an email and password. If multiple people need to answer messages sent to sales@, simply assign both team members to that mailbox. Each agent replies directly from their own webmail account without ever sharing personal passwords.

Conclusion: freedom and savings for your business

Setting up a custom domain email without Google Workspace or Microsoft does not mean settling for outdated web hosting tools. You can run modern, fast, and dependable inboxes without paying for unused productivity suite licenses on every user account.

Domailo was built specifically for this purpose: manage your domains, mailboxes, and team access through a clean webmail interface while maintaining predictable flat-rate costs across your organization.

To see how simple managing your company email can be, start a 30-day trial of any paid Domailo plan. Connect your domain, invite your team, and explore every feature with no upfront commitment.

Frequently asked questions

Is it mandatory to use Google or Microsoft for business email?

No. Any business email provider that supplies MX servers and DNS authentication can manage email for your custom domain. Google Workspace and Microsoft 365 are simply two popular options on the market, often costing more because they bundle full office software suites with mailbox storage.

Does Domailo work with desktop apps like Outlook or Thunderbird?

No. Domailo operates exclusively via webmail in your browser, without external synchronization support for IMAP or POP. This architecture ensures fast, straightforward access on any computer with an internet connection, avoiding the need to configure or update local desktop email clients.

How does mailbox sharing work in Domailo without sharing passwords?

In Domailo, team members receive individual invitations and create their own credentials. The primary administrator links relevant users to a shared mailbox (such as billing@). Each team member accesses the shared inbox directly from their own account, keeping credentials secure.

Can I use a domain registered on Registro.br without Google or Microsoft?

Yes. Because the free DNS panel on Registro.br does not allow underscore characters in TXT records (which DKIM requires), you can simply point your nameservers to Cloudflare's free plan. In Cloudflare, you can add all MX, SPF, and DKIM records provided by Domailo without character limitations.

What happens if I cancel my Domailo subscription?

If you decide to cancel your Domailo subscription, your account is not immediately deleted. The control panel and inboxes transition to read-only mode, allowing you to access and review your past email history without sudden data loss.