1and1 Webmail: The Complete Guide You Actually Need

Picture this. You just bought a domain name for your small business. You want a professional email that says yourname@yourbusiness.com instead of something from a free provider. Someone tells you to check out 1and1 Webmail. You search it up. There are a hundred different pages talking about logins and IMAP settings and you have no idea where to even start.

This guide is for that person. No jargon. No fluff. Just everything you need to know, explained like a friend who actually understands it.

Quick Facts at a Glance

Detail	Information
Original Name	1&1 Internet
Founded	1988, Germany
Founded By	Ralph Dommermuth and Wendelin Abresch
Current Name	IONOS
Rebranded	2018 (after merger with ProfitBricks)
Parent Company	United Internet AG
Headquarters	Montabaur, Rhineland-Palatinate, Germany
Webmail Login URL	mail.ionos.com
Customers	Over 6 million worldwide
Operates In	USA, UK, Germany, France, Spain, Italy, Canada, Mexico, Austria
Biggest US Data Center	Lenexa, Kansas
Starting Price	Around $1/month
Current Status	Active and fully operational

What Is 1and1 Webmail, Really?

Let’s start at the beginning. A lot of people hear “webmail” and think it means something technical. It’s not complicated at all.

Webmail is just your email inbox living on the internet instead of your computer. You open a browser, go to a website, and there are your emails. No app to install. No software to update. Just a website that holds your messages.

1and1 Webmail is that same thing — but built and managed by a company called 1&1, which later became IONOS. When you buy email hosting from them, you get a mailbox that you can open from any device, anywhere in the world, using a browser.

Think of it like this. Gmail is webmail. Yahoo Mail is webmail. 1and1 Webmail works exactly the same way — except it ties directly to your own domain name. So instead of johnsmith@gmail.com, you get john@yourcompanyname.com. That one small difference matters a lot when you’re running a business.

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The Story Behind the Name: From 1&1 to IONOS

The company behind 1and1 Webmail has a longer history than most people realize.

It all started in 1988 in Germany. Two people — Ralph Dommermuth and Wendelin Abresch — started a small marketing and advertising company called 1&1 EDV-Marketing GmbH. Back then, the internet barely existed. Nobody knew what web hosting was.

Through the 1990s, the internet exploded. 1&1 was right there for it. They built data centers. They created hosting packages. They became one of the first companies to make web hosting available to regular people and small businesses. By the late 1990s, they were the biggest hosting company in all of Germany.

In 2000, the parent business restructured. The umbrella company became United Internet AG. The product side kept the 1&1 Internet brand that customers knew.

Then came a big change. In 2003, they crossed the Atlantic and started serving US customers. Their biggest American facility sits in Lenexa, Kansas — a massive data center that eventually housed tens of thousands of servers.

In 2018, 1&1 merged with a German cloud company called ProfitBricks, led by CEO Achim Weiss. That merger created something new. The combined company dropped the old name and rebranded as IONOS. In the US, the legal name officially became IONOS Inc. in 2021.

So when you search for “1and1 Webmail” today, you’re actually looking for the same product under a new label. The login address is now mail.ionos.com. The service is the same. The history is what changed.

Who Is 1and1 Webmail Actually For?

Not every email service fits every person. So who actually needs this?

Small business owners are the biggest audience. If you run a bakery, a law firm, a photography studio, or any kind of small operation, having an email with your business name in it looks professional. It tells clients you’re serious.

Freelancers love it too. A graphic designer with hello@mydesignstudio.com sounds more trustworthy than a random Gmail address.

People already hosting with IONOS find it convenient. If your website already lives on IONOS servers and your domain is registered there, adding email is simple. Everything is in the same account dashboard.

Non-technical users appreciate that you don’t need to know anything about servers to use it. Once the account is created, you just log in like you would any other email service.

How to Log In: Step by Step

This part trips up a lot of people. The old URL — 1and1.com — doesn’t take you straight to webmail anymore. It redirects to the IONOS website. Here’s exactly what to do:

Step 1. Open any browser on your computer or phone.

Step 2. Type mail.ionos.com into the address bar and press enter. This is the direct webmail login page.

Step 3. Enter your full email address — not just a username. The full address, like yourname@yourdomain.com.

Step 4. Type your password.

Step 5. Hit the Login button.

That’s it. You’re in.

If you forget your password, look for the “Forgot Password” link on the login page. IONOS will send a reset link to a backup email or phone number you set up when you created the account.

One common reason login fails: Caps Lock is on. Passwords are case-sensitive. Check that first before assuming something is wrong.

Another common issue: browser cookies and stored cache can sometimes block the page from loading right. If the page acts strange, clear your browser cache. Chrome users can press Ctrl+Shift+Delete to get to that setting quickly.

The Features You Actually Get

Once you’re inside the inbox, here’s what the service gives you:

Custom Domain Emails This is the whole reason most people are here. You get an email address with your own domain name attached. Multiple addresses are available depending on your plan.

Spam Filtering Nobody likes junk mail clogging their inbox. IONOS runs filters that catch most spam before it reaches you. Higher-tier plans also include antivirus scanning on attachments.

Built-in Calendar You don’t need a separate app to track meetings. The webmail interface has a calendar built right in. You can set reminders, schedule appointments, and keep everything in one place.

Contact Management Your address book lives in the same interface. You can store names, phone numbers, and email addresses. This beats keeping contacts in a separate spreadsheet.

Two-Factor Authentication (2FA) This is a security feature worth turning on. When enabled, you need both your password AND a code sent to your phone to log in. Even if someone steals your password, they can’t get in without that second code. You can set this up through your IONOS account settings.

Mobile Browser Access You don’t need to download any app. Open mail.ionos.com on your phone’s browser and it works. The layout adjusts to fit smaller screens.

Ad-Free Inbox Unlike some free email services, IONOS doesn’t show you ads inside your inbox. What you paid for is what you get — a clean inbox, nothing more.

Device Synchronization Read an email on your laptop and it shows as read on your phone too. Sent messages appear everywhere. Deleted items disappear everywhere. This is what IMAP does, and 1and1 Webmail supports it fully.

Understanding the Plans

IONOS offers different email packages. The pricing is genuinely affordable, especially for what you get.

The Mail Basic 1 plan is the entry point. Around $1 per month. You get one email address and 2GB of storage. That’s enough for roughly 10,000 messages. Fine for a solo freelancer who just needs a professional address.

The Mail Basic 1+ plan steps things up. Storage jumps to 12GB. Still one email address. Better suited to someone who sends and receives a lot of messages with attachments.

The Mail Business plan is for teams. You can have up to five email addresses. Storage per user hits 50GB. Team collaboration tools come included. This is what you want if you’re running a small company with multiple employees.

There are also Email & Office plans that bundle Microsoft 365 or Microsoft Exchange into the mix. These are pricier but come with the full Microsoft Office suite — Word, Excel, Teams, and everything else.

One important thing: storage can be increased separately from the plan. If you run out of space, you don’t have to upgrade your whole plan just to get more room.

Setting Up Email on Your Phone or Desktop App

Some people prefer not to use webmail in a browser. They’d rather have the emails arriving in Outlook, Thunderbird, or the built-in mail app on their iPhone. That works perfectly fine.

You’ll need two things: incoming server settings and outgoing server settings.

For incoming mail, IONOS recommends using IMAP over POP3. Here’s the quick reason: IMAP keeps your emails on the server and syncs everything across all your devices. POP3 downloads emails to one device and removes them from the server. IMAP is almost always the better choice.

Here are the key server settings you’ll need:

• Incoming server (IMAP): imap.ionos.com — Port 993 — SSL
• Outgoing server (SMTP): smtp.ionos.com — Port 465 — SSL
• Alternative outgoing port: 587 — TLS/STARTTLS (use this if port 465 is blocked on your network)

Your username is always your full email address — not just the part before the @.

For Outlook, go to File → Add Account → Manual Setup. For Thunderbird, go to Account Settings → Add Account → Email. For iPhone, go to Settings → Mail → Accounts → Add Account → Other. The steps are slightly different in each app but the server addresses above stay the same.

Common Problems and How to Fix Them

Even reliable services have bad days. Here are the most common headaches users run into and what to do about them.

The login page isn’t loading. Check your internet connection first. Then try a different browser. If that doesn’t help, IONOS may be doing maintenance. Check their status page or social channels to see if there’s a known outage.

Password reset email never arrives. Check your spam folder first. It sometimes lands there. If it’s not there after 10 minutes, try requesting it again. Make sure you’re entering the correct backup email address associated with your account.

Attachments won’t upload in Chrome. This is a known issue that a few users have reported. IONOS’s own suggestion in some cases is to try Firefox or Edge instead. Not ideal, but it works while they sort it out.

Emails not sending from Outlook or Thunderbird. Nine times out of ten, this is a port issue. Your internet provider may block port 465. Switch to port 587 and change the encryption from SSL to STARTTLS. That usually fixes it instantly.

Too much spam getting through. Even good filters miss some junk. You can manually mark messages as spam inside the webmail interface. Over time, the filter learns from your choices and gets better. For heavy spam problems, the Mail Business plan includes a stronger virus and spam protection layer.

Font keeps resetting in the email editor. Some users have reported this frustration — every time they write a new email, the font size defaults back to something tiny. Unfortunately this appears to be an interface quirk. The workaround is setting your font preference at the start of each compose session. It’s annoying, and it’s a known complaint in user reviews.

What Real Users Think: The Honest Review

Here’s the part that most company guides skip. Let’s talk about what real customers actually say.

The positive side: Many customers have been with IONOS for 10, even 15 years. They cite affordable pricing, reliable uptime, and the convenience of having email, hosting, and domain all in one place. For people who just need email to work without thinking about it, it largely delivers.

The frustrating side: Customer support is a genuine weak point. Multiple users across review platforms describe long wait times, being passed between departments, and issues that take days to resolve. Billing disputes in particular have drawn strong complaints. Some users describe feeling like they couldn’t easily cancel without unexpected charges appearing.

The spam filter: The filters work for most people. But some users find that spam gets through more than it should. On the flip side, a few users have experienced the opposite problem — legitimate emails getting flagged as spam and never arriving. Neither problem is unique to IONOS, but both are worth knowing about.

The bottom line from real users: If everything works, you barely notice it and get on with your life. When something breaks, getting help quickly can be a struggle.

Is 1and1 Webmail Still Worth It in 2026?

The short answer is yes — for the right person.

IONOS is one of the most affordable professional email options available. Plans starting at $1/month for a custom domain email are genuinely hard to beat. The infrastructure is solid. The company has been around since 1988. They’re not going anywhere.

If you need something simple — one professional email tied to your domain, accessible from any browser, with basic spam filtering and a calendar — this ticks those boxes at a price that won’t hurt.

If you need heavy collaboration tools, a slick modern interface, or hands-on customer support, you might find Gmail Workspace or Microsoft 365 a better fit for the budget. Both cost more, but both offer more polish.

The key is knowing what you need. 1and1 Webmail / IONOS works best as a no-fuss, budget-friendly email hosting solution for individuals and small businesses who don’t need a lot of extras.

Final Words

1and1 Webmail has been part of the internet’s hosting world for over three decades now. It started as a scrappy German startup in 1988 and grew into a company serving millions of customers on multiple continents. The name changed to IONOS along the way, but the core idea stayed the same.

Give people a professional email address they can access from anywhere, at a price that makes sense for small businesses.

Is it perfect? No. The support complaints are real and worth taking seriously before you commit. But for sheer affordability and reliability over time, it has earned its place in the market.

If you’re just getting started and you want a clean, professional email without paying a fortune, this is a perfectly solid choice. Log in at mail.ionos.com and see for yourself.

Frequently Asked Questions (FAQ)

1. Is 1and1 Webmail the same as IONOS Webmail? Yes, completely. The company rebranded from 1&1 to IONOS in 2018. The product is identical. Old 1and1.com links redirect to the IONOS website, and the webmail login lives at mail.ionos.com.

2. How do I log into 1and1 Webmail? Go directly to mail.ionos.com in any browser. Enter your full email address and password. If 1and1.com is where you’re going, it will redirect you to the IONOS site anyway.

3. What do I do if I forgot my 1and1 Webmail password? Click the “Forgot Password” link on the login page. IONOS sends a reset link to your backup email or registered phone number. If you don’t receive it within a few minutes, check your spam folder.

4. Can I use 1and1 Webmail on my phone? Yes. Open mail.ionos.com in your phone’s browser — no app needed. You can also set it up in apps like Gmail, Apple Mail, or Outlook using IMAP settings: imap.ionos.com on port 993 with SSL.

5. What is the SMTP server for 1and1/IONOS? The outgoing mail server address is smtp.ionos.com. Use port 465 with SSL, or port 587 with TLS/STARTTLS if your internet provider blocks port 465.

6. Is there a free plan for 1and1 Webmail? No free plan exists for a standalone email account. Paid plans start around $1/month. However, if you have hosting or a domain registered with IONOS, email may be bundled into your package.

7. How much storage does 1and1 Webmail give you? It depends on your plan. Mail Basic 1 gives 2GB. Mail Basic 1+ gives 12GB. Mail Business gives 50GB per user. Storage can also be purchased separately if you need more room.

8. Does 1and1 Webmail have two-factor authentication? Yes. You can enable 2FA through your IONOS account settings. It works via SMS or an authenticator app. Turning this on is strongly recommended for account security.

9. Can I use my 1and1 email in Microsoft Outlook? Absolutely. Set up a manual account in Outlook using IMAP for incoming (imap.ionos.com, port 993) and SMTP for outgoing (smtp.ionos.com, port 465 or 587). Your username is your complete email address.

10. Why are my emails going to spam with IONOS? Spam filters aren’t perfect. Legitimate emails sometimes get caught. Check your spam or junk folder regularly. You can mark falsely flagged emails as “Not Spam” to help train the filter over time.

11. Can I have multiple email addresses with 1and1 Webmail? On basic plans, you typically get one address. The Mail Business plan allows up to five addresses per account. Higher-tier and team plans support even more users.

12. Is the 1and1/IONOS inbox ad-free? Yes. Unlike free email providers that show you targeted ads, IONOS does not display advertisements inside the webmail interface. You get a clean inbox.

13. Why did 1and1 change its name to IONOS? In 2018, 1&1 Internet merged with ProfitBricks, a German cloud infrastructure company. The combined entity was rebranded as IONOS to reflect the broader range of services beyond just hosting. The word “IONOS” was chosen for its association with the ionosphere — the upper atmosphere — suggesting a connection to cloud and internet infrastructure.

14. What should I do if my 1and1 Webmail won’t load? First, check your internet connection. Then try a different browser. Clear your browser’s cookies and cached files. If the problem continues, check whether IONOS is experiencing a service outage by searching for “IONOS status” online.

15. How do I cancel my 1and1/IONOS email account? Log into your IONOS account dashboard, go to contract management, and follow the cancellation steps. Pay attention to contract renewal dates — IONOS auto-renews subscriptions and cancellations generally need to be submitted before a specific cutoff date to avoid being charged for another cycle. Several user complaints involve being charged after attempting to cancel, so timing matters.

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