Business email

Build trust with professional email

Use your own domain for email. Build trust, grow your business, and save time with AI.

Header mail

Why businesses pick one.com for their professional email

Zero ads, always

Enjoy a 100% ad-free business email service, every single day.

Spam stays out

Built-in security measures keep your inbox private, clean, and protected.

Email and Calendar, all in one spot

Stay on top of your day with a built-in professional calendar included.

Hosted in Europe

Your data is securely stored in Europe by one.com, a proudly European company.

Pricing that scales with your business

Pick the plan that fits your team right now, then scale up as you grow.
No hidden fees.

Email Essential
.../mo.
  • Free domain for first year
  • Easy migration from your email provider
  • Webmail
  • AI writing assistant
  • Ad-free email
Email Essential benefits
  • Spam filter
  • Access from any device
  • 5 email accounts
  • 3 GB mailbox size
  • 15 GB email storage
Most popular
Email Unlimited
.../mo.
  • Free domain for first year
  • Easy migration from your email provider
  • Webmail
  • AI writing assistant
  • Ad-free email
Everything in Email Essential, plus:
  • Unlimited email accounts
  • Mailbox size up to 200GB*

*Subject to fair use policy

Everything your business email needs, built right in

Draft emails faster with AI

Not sure where to begin? Our AI Writing Assistant helps you write and polish emails in seconds — saving you time and letting you hit send with total confidence.

Save time with ai

Keep email and your calendar in perfect sync

Set up and confirm meetings in seconds. Email and calendar work together seamlessly, so planning your day is effortless. Schedule meetings, respond to invites, and stay on track — all from one place.

Full width calendar

Connect to the email app you already love

Work the way you want. Hook up your email to Gmail, Outlook, Apple Mail, or other top apps — or stick with our webmail. It's completely your call.

Choose your email client

Available anywhere, on any device, at any time

Read and respond to messages from your laptop, tablet, or smartphone — no matter where you are.

Never forget an appointment

Email built around your business

Our products are built around what our customers actually need. Grab a domain and get instant access to our in-house webmail, complete with a smart calendar and an AI-powered Writing Assistant.

Our email platform delivers top-tier security and a dependable 99.9% uptime guarantee. Stay protected with end-to-end encryption baked right into your hosting.

Our built-in import tool makes it a breeze to transfer your emails from free services like Gmail, Yahoo, or Hotmail straight into your new account.

Your email grows right alongside your business. Upgrade whenever you're ready to unlock more storage and additional inboxes that match your evolving demands.

On of a kind mail layer 1

Works with the email apps you already use

Our hosting connects seamlessly with all the leading third-party email clients. Prefer Google Gmail, Microsoft 365 Outlook, or something else entirely? Our hosting gives you the freedom to run with whatever works best for you.

Choose your email client

Let AI do the heavy lifting

Staring at a blank draft with no idea where to start? Meet our AI-powered Writing Assistant, built specifically for email. Kick writer's block to the curb, cut the time you spend composing, and send every message with complete confidence.

Save time with ai

Schedule smarter, stress less

Set up and accept meetings wherever you are

Take back control of your time. Our webmail includes a robust built-in calendar that keeps your email and your schedule perfectly in step — no more jumping between tabs or juggling a dozen different tools.

Never forget an appointment

Make your business email truly your own

Stay comfortable whether it's morning or midnight

Handle your emails around the clock with our Dark Mode feature. Switch to dark, keep it light, or let it automatically match your Windows, macOS, or other operating system settings.

Light mode webmail

What makes one.com the smart choice for professional email?

Email, calendar, and AI writing support — all included. No extra tools to bolt on or manage.

Expand your storage in just a few clicks

Start with 3GB of storage on our Basic mail plan. Need more room? Add a storage upgrade and get exactly the space your business demands.

Dependable protection, day and night

Keep your data safe with our backup and restore feature. Recovering what you need is fast and straightforward.

Synced across all your devices

Pull up your emails from your laptop, tablet, or phone — your inbox is always up to date, wherever you happen to be.

Expert support whenever you need it

Our 24/7 customer service team has you covered. Reach our dedicated specialists by chat or phone — help is never far away.

Grow on your own schedule

Your email grows right alongside your business. Upgrade whenever you're ready to unlock more storage and additional inboxes that match your evolving demands.

We grow with you

Built for teamwork

Power up your team with Microsoft 365. Co-author Word documents, PowerPoint decks, and Excel spreadsheets from any location, at any hour. Pair Exchange Online with Outlook for sharp, reliable email communication and effortless appointment scheduling.

Collaborate easily
Help center

Have an issue but like learning on your own? We have a dedicated team creating the best help articles for you.

Chat support

We are always here to help you. 24/7 – 365 days a year.

Academy

Learn more about ecommerce, marketing, business, and much more with in-depth guides, tips & tricks.

Email support

Whatever your question, we will respond within 24 hours all year round.

Frequently asked questions

Business email is a professional email service that lets you send, receive, and store messages using your own domain name. It gives individuals and organizations a secure, branded platform for managing business communications. Both free and paid options exist, but paid business email plans typically deliver stronger security, no ads, greater storage capacity, and the ability to use a custom domain name in your email address.


An email domain is essentially the same thing as a domain name. The term comes up most often when people talk about email addresses. It's the part that appears after the '@' symbol. For instance, if your website is example2.com, your email domain would be "@example2.com."


Using a custom domain for your email strengthens your brand image, boosts your credibility, and builds customer confidence in your business. On top of that, you get greater control over your communications, enhanced security, a completely ad-free experience, and the flexibility to tailor your email setup to your exact needs.


It all comes down to the plan you select. Email Essential gives you up to 5 email addresses and 3 GB of storage per domain. With Email Unlimited, you get an unlimited number of email addresses and unlimited storage.


Every account includes a powerful built-in spam filter that keeps your inbox secure and free of junk. It's switched on by default, so your email is protected from the moment you get started with us.


Absolutely. Add your email to your phone and stay connected from anywhere. Our email hosting works with all the major email clients and apps, so managing your inbox from a mobile device is fast and convenient. Step-by-step setup guides for your preferred mobile mail app are available in our help center.