No more custom domains in Microsoft Outlook?

Microsoft will phase out custom email domains in A perfect time to create a mail address with Tuta!

Mobile screen with Microsoft app icons: Outlook will no longer allow you to create custom domain email addresses.
Microsoft will stop letting you create custom domain email addresses in - but we've got you covered. Check out what Tuta Mail can do for you! phasing out custom domain email hosting

tl;dr: If you are looking for an alternative to your Outlook custom domain email addresses, sign up for Tuta Mail now! The Revolutionary plan costs only €3/mth and has 3 domains as well as unlimited email addresses with your own email domains.

Most Outlook users are using the platform because of its integrations with the Microsoft suite combined with the ability to host a custom domain name on and create a custom email address with that email domain name.

Currently, with a Microsoft 365 Family or Microsoft 365 Personal subscription, you can create a personalized email address like which is associated with your mailbox.

But it seems the option to add a personalized email address to your Outlook mailbox will be discontinued starting November 30th, 2023, according to a message Microsoft has been sending out to subscribers. A screenshot of this message was shared by Juliana Peña on Twitter.

The message by Microsoft to its Outlook customers states:

Personalized email addresses in

Starting November 30, 2023, you will no longer be able to associate a new personalized email address (e.g. with your mailbox. If you already have a personalized email address set up, you will not be impacted by this change, and you can continue using it without any disruption in service. After November 30, 2023, if you choose to remove your existing personalized email address, you will be unable to add it back.

Microsoft phases out support to add custom domains for private users in Outlook.

Add your custom domain & unlimited email addresses

If you’re an Outlook subscriber or wanted to create an Outlook email address, their planned phase-out for personalized email addresses might have you worried, but we’ve got you covered!

Tuta Mail has a freemium model and by upgrading a free account to a paid subscription or creating an email account on one of our paid plans, you can get the best value for custom domain email addresses and secure your communications with the highest level of encryption.

Our pricing is unrivaled by any other email service provider. Not just compared to those that offer secure encrypted email, but even compared to those that make profits from tracking you, serving you ads and selling your data. Our most affordable plan allows you to have unlimited calendars and use your own custom email domain, including the option to use catch-all and to set up an unlimited number of custom domain email addresses.

While you also send secure email with Outlook, getting end-to-end encryption with this US email provider is cumbersome and costly while Tuta Mail offers password-protected, end-to-end encrypted in all email plans, also in free. So you can safely delete your Outlook account!

Best business solution

As a business or freelance professional, you can save time and money by hosting all your business emails end-to-end encrypted on Tuta's secure servers based in Germany. Being able to add custom domains, additional alias email addresses, additional users, and whitelabel customizations to use your own branding, we ensure that Tuta Mail is the best option for business emails. Tuta comes with lots of more features like smart filtering, session handling, user management and GDPR-compliance as well as a fully encrypted address book and fully encrypted calendars. Plus, you can share your calendars, an additional mailbox, and email contact lists with other users so that your organization can stay organized and connected.

We enable you to use the benefits of the cloud - availability, cost-efficiency, flexibility, automatic backup - without compromising on security. With Tuta Mail you own your data, no one else can access it.

Check our comparison page to find out more about what makes Tuta Mail a great Outlook alternative and what are the key differences between Outlook vs Tuta Mail.

Security is paramount

In a previous article on the risks of big tech email services, we outlined how the most popular email alternatives such as Gmail and Outlook are old and vulnerable to cyber-attacks.

Check out this up-to-date review of Outlook vs Gmail to learn how the two largest email providers compare today.

The data breaches and the loss of personal information have become a norm, and people are more concerned than ever about the safety of their data. The US National Institutes of Standards & Technology has issued a complex framework for what businesses should do to protect themselves from cyber-criminals, calling for encryption and controlling logins.

Tuta Mail provides a viable solution for those looking to protect their data and keeping their information private. Tuta's emphasis on privacy and security make it the best email service currently available.

The most thorough encryption features on the market, as well as two-factor authentication, session handling, phishing protection and much more are available as soon as you create a Tuta email account, regardless if you use a free email address or if you choose our service for your professional email address with a custom domain or our highest-tier plan for corporate needs.

Security and privacy are built-in features of all our email accounts, including the free tier, rather than being a long and complex process that requires additional setup. It’s easy to adjust the privacy settings to your preferences and you don’t need to reset them after every update, unlike with some of the mainstream email services. This allows you to have complete control over your data and who can access it.


Tuta Mail offers a secure and private alternative to Outlook and other outdated Big Tech email clients, particularly if you want to create a custom domain email address.

Its built-in privacy and security features, end-to-end encryption, and user-friendly interface make it a great choice for anyone looking to protect their data and keep their information private. With the decrease in support from Microsoft for personalized email addresses with Outlook mailboxes and increasing concerns about data breaches and loss of personal information, Tuta Mail is a timely solution for those looking for a secure email service to use with their custom email domain.

Create your email address with a custom domain now - and never again worry about the privacy implications of Big Tech!