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BUSINESS EMAIL

What is professional business email?

Professional business email uses your own domain name, like info@yourbusiness.com.na, instead of a free address.

By ADA Web Division, Rundu, Namibia. Reviewed 18 October 2026 · 4 min read

Short answer

Business email is email that ends with your own domain instead of a free service. It looks more established, stays with your business when staff change, and you control it. It needs a domain, a mail service and correct DNS settings, and it is not always included with hosting.

  1. Sender

    Writes to info@yourbusiness.com.na.

  2. MX records

    Say where mail for the domain goes.

  3. Mail service

    Stores your messages.

  4. You

    Read it on a phone or computer.

Illustration How an email finds your mailbox. Simplified for learning.

Why it helps

  • Trust. sales@yourbusiness.com.na looks more established than a free address.
  • Ownership. The address belongs to the business, not a person.
  • Flexibility. You can add addresses for staff or roles and remove them when people leave.

How it works

Email is delivered using DNS settings called MX records, which tell senders which mail servers receive messages for your domain (the email standard describes this (external site, opens in a new tab)). You choose a mail service, then set the MX records at your domain. If DNS is changed carelessly, email can stop.

Hosting email or a separate service?

Ask for the price per mailbox and what happens when you want to move.
OptionGood forWatch out for
Email with your hostingA few simple mailboxesStorage limits and shared servers
A dedicated email serviceTeams, calendars and shared filesA monthly cost per user
A free addressA first step onlyLooks less professional and the business does not own it

Common mistakes

  • Using a personal address for everything. It is hard to hand over when staff leave.
  • Weak or shared passwords. Use strong, separate passwords.
  • Changing DNS without checking email. Note the existing settings first.
  • Domain registered in someone else's name. You could lose both site and email.

Key terms and where the definitions come from

Show key terms and sources

These explanations are ADA's own words, adapted from the independent sources named. Those organisations do not endorse or work with ADA, and the examples are illustrations, not real clients.

How does business email use your domain?

Email addresses on your own domain, such as info@yourbusiness.com.na, work because DNS records tell the internet which mail servers receive that domain's email.

Source: Based on IETF, RFC 5321: Simple Mail Transfer Protocol.

For a Namibian business: An address on your own domain looks more established than a free webmail address and stays with the business if staff change.

Related ADA service: Professional business email guide

What is DNS?

DNS, the Domain Name System, is the internet's naming system. It lets a human-readable domain name be matched to the numeric address of the server that holds the site.

Source: Based on RFC Editor (IETF), RFC 1034: Domain names, concepts and facilities.

For a Namibian business: When a Namibian company moves its website to a new host, the change is made in DNS records. A wrong record can take a website or email offline, so changes are made carefully.

Related ADA service: Website care plans

Common questions

Do I need a website to have business email?

You need a domain, not a website. Many businesses start with the domain and email first.

Is email included with hosting?

Sometimes. Ask what is included and the limits on size and number of mailboxes.

Can I keep my old address?

You can keep both for a while and forward the old one to the new one.

Is a free address that bad?

It is fine to start. A domain address builds more trust over time.

What if I change provider later?

Mail can be moved, but plan it with care and keep the old service until the new one works.

Need help with this?

Optional. You do not need any ADA service to use what you have just read.