What are the best free email providers?

Sending and receiving emails should not have to cost anything, which is why free email providers are par­tic­u­lar­ly popular among private users. Our overview gives you tips on where to get the most storage space, the highest security standards, as well as ex­plain­ing what other features are offered by these free email providers.

All in­for­ma­tion is current as of December 2025.

The best free email providers in direct com­par­i­son

Mail.com

The big advantage of Mail.com is the wide selection of over 200 different domains you can choose from. Unlike most free email providers, which typically use the brand name as the second part of the email address, Mail.com allows you to choose from a variety of domain names. Some of these domains even relate to specific in­dus­tries, making Mail.com email addresses suitable for pro­fes­sion­al com­mu­ni­ca­tion.

With Mail.com, you get 65 GB of storage space in your mailbox, which is quite generous compared to other free email services. You can send at­tach­ments up to 30 MB in size, and if you need to send larger files, you can use Mail.com’s 2 GB of free cloud storage and share a link to the file. Ad­di­tion­al­ly, you can connect up to 10 email addresses under one account.

Mail.com also offers the pos­si­bil­i­ty of creating a pro­fes­sion­al account, which is free, but the maximum file at­tach­ment size for free users is limited to 100 MB in this version.

Mail.com uses a variety of security measures, including antivirus scanning to protect your inbox from threats and spam filtering to keep junk mail out of your inbox. To prevent unau­tho­rized access to your account, Mail.com also offers two-factor au­then­ti­ca­tion (2FA) for extra security.

Gmail

Gmail  offers a total storage capacity of 15 GB across all the connected Google services, including Gmail, Google Drive, and Google Photos. The maximum size of email at­tach­ments has also increased in pro­por­tion to this growth, and now stands at 25 MB. Al­ter­na­tive­ly, the provider lets users send large files via Google Drive.

In terms of layout and ease of use, Gmail has an interface with a very similar ori­en­ta­tion to other email providers like Outlook and Thun­der­bird. This has been the case since it first came about, despite it being browser-based. It is now possible to in­di­vid­u­al­ize the interface by designing it with personal photos, for example. In addition to this, tabs can be adjusted as required.

A further advantage of Gmail is its perfect in­te­gra­tion into the Google universe. Alongside Google Drive, Google Meet is also very handy. With this you can chat with friends within Gmail and have video con­ver­sa­tions with up to 100 people – and this across multiple devices as well. 

One of the main downsides of Gmail is data pro­tec­tion. Google is often crit­i­cized when it comes to data pro­tec­tion, due to the alleged blurring or even softening of their own guide­lines. It currently scans the contents of emails received and sent via Gmail. Through this it can help them to deliver target ad­ver­tis­ing to Gmail users. Google claims that this scanning also helps to identify and sort spam mail and display per­son­al­ized ad­ver­tis­ing. 

But according to the company, SSL/TLS en­cryp­tion will protect emails better in the transfer between a browser and the Gmail servers. However, this does not mean that your emails will be encrypted end-to-end, just as the content of your emails will not be protected – only during its transit to the server. 

Yahoo Mail

Just like Gmail, Yahoo Mail is another free email provider with a solid amount of storage space – currently 20 GB. This has meant that the need to delete emails is very much a thing of the past. The flip side, though, is that there is no cloud storage service offered. 

In addition to this, Yahoo Mail offers many options when it comes to per­son­al­iza­tion. Layout, order, and the email preview function can all be adjusted, as well as the design of the inbox. Alongside features like a messenger, and apps for both iOS and Android, there are also POP3 and IMAP protocols, as well as an “adaptable” spam filter.

In terms of data pro­tec­tion, Yahoo Mail has similar short­com­ings to Gmail. For the transfer of emails between the browser and the Yahoo server, SSL/TLS en­cryp­tion is used.

Outlook.com

For a long time, “Outlook” was the name of the Personal In­for­ma­tion Manager (PIM) developed by Microsoft. It is part of the whole Microsoft 365 package. But since early 2013, the very similar sounding web email service “Outlook.com” has replaced Microsoft’s previous free email software “Hotmail”. With Outlook.com, Microsoft now provides serious com­pe­ti­tion to the free email providers such as Yahoo and Google. 

The first and most important advantage is its perfect in­te­gra­tion into the Microsoft universe. By simply reg­is­ter­ing on Outlook.com, you will have access to other services offered by Microsoft. These include the video call and chat service Skype, the cloud storage service OneDrive, the online version of Office, and OneNote. Thanks to the included office in­ter­faces, Outlook.com is also suitable for more complex work en­vi­ron­ments, and even comes with a similarly intuitive and trust­wor­thy user interface. 

With regards to storage space, Outlook.com is on a similar level to Google’s Gmail service. With over 15 GB, there is more than enough space for all emails. Ad­di­tion­al storage is available for files of a different kind with Microsoft’s in­te­grat­ed cloud storage solution OneDrive, which is available for free. At­tach­ments can be up to 25 MB in size.

The ad­ver­tise­ments that do appear are not per­son­al­ized based on the content of emails according to Microsoft’s privacy policy. Instead, the software uses data like your location, or your internet surfing habits based on cookies. Something that is still unknown, however, is the server location. Microsoft’s email servers are primarily located in the USA and Europe, with data centers worldwide. 

GMX

GMX is not as well-known as the free email providers presented above, but still con­ve­nient­ly manages to meet all your basic email re­quire­ments. When emails are trans­mit­ted to the GMX server, they are ex­clu­sive­ly SSL/TLS encrypted. The data transfer between the servers of in­di­vid­ual providers is also encrypted. Two-factor au­then­ti­ca­tion provides even more security. 

One of the biggest selling points for GMX is its 65 GB of storage space, which can hold hundreds of thousands of emails, depending on their size. Your at­tach­ments can be up to 50 MB in size. If you need to send larger files, you can use GMX’s built-in cloud storage, which offers 2 GB for free, with ad­di­tion­al space available in paid plans.

Another major upside of GMX is its Online Office feature. Without in­stalling ad­di­tion­al software, you can edit Word documents, Excel spread­sheets, or Pow­er­Point pre­sen­ta­tions directly in your browser. While not as feature-rich as Microsoft 365 or Google Docs, it provides essential editing ca­pa­bil­i­ties.

GMX also offers apps for Android and iOS, allowing you to access your emails and mailbox folders anywhere. Ad­di­tion­al­ly, GMX provides MailCheck, a browser extension for Chrome, Firefox, and Edge, ensuring you never miss an important email.

GMX’s default interface is blue. Al­ter­na­tive designs can be selected and saved in the settings. You can navigate around using the menu bars. While the upper tab allows a quick change between the standard features such as mailboxes, cloud, calendar or address book, you will also find ad­ver­tise­ments and links to other GMX products on the left, which are used to finance the free email service. 

AOL Mail

Many years ago, America Online was one of the most popular email services, but it has since declined in promi­nence. However, this does not mean it is not a reliable free email provider. Rec­og­niz­ing the need for im­prove­ment, AOL revamped its service in 2022. Today, the web portal offers 250 GB of storage space and supports at­tach­ments of up to 25 MB.

AOL Mail allows you to customize your spam filter’s strict­ness level, choosing between Low, Medium, or High. AOL rec­om­mends setting it to “Medium,” as they find this level provides the best balance between security and ensuring important emails are not mis­tak­en­ly sent to the spam folder.

The free email provider also offers an in­te­grat­ed calendar, allowing users to manage their schedules and ap­point­ments more easily. AOL Mail also provides cus­tomiz­able themes, enabling users to per­son­al­ize their inbox to their liking. Ad­di­tion­al­ly, users can create folders to organize emails and search their inbox ef­fi­cient­ly using keywords.

Zoho

Zoho Mail is an email service designed for both in­di­vid­ual users and busi­ness­es. The free plan is intended for personal use and, while rel­a­tive­ly basic, it still provides all the essential features you would expect from a free email provider. Similar to Microsoft, Zoho offers a com­pre­hen­sive suite of pro­duc­tiv­i­ty tools. In addition to email, it includes instant messaging, a word processor, a calendar, document sharing, and several other features. Col­lec­tive­ly, these services are known as Zoho Workplace.  

One major advantage of Zoho Mail is that it is com­plete­ly ad-free, ensuring a dis­trac­tion-free user ex­pe­ri­ence. The service boasts a 99.99% uptime, meaning users can rely on it for un­in­ter­rupt­ed access to their emails. Ad­di­tion­al­ly, Zoho Mail provides advanced ad­min­is­tra­tive tools to protect users from phishing, spam, viruses, and malware. To enhance security, the platform also requires two-factor au­then­ti­ca­tion (2FA).  

Zoho Mail provides 5 GB of cloud storage per user and supports at­tach­ments up to 25 MB, with optional Dropbox in­te­gra­tion for added flex­i­bil­i­ty. It is ac­ces­si­ble via webmail and mobile apps for Android and iOS, but the free plan does not support IMAP or POP3, re­strict­ing use to Zoho’s own platforms.  

Zoho Mail pri­or­i­tizes privacy and security, offering end-to-end en­cryp­tion, phishing pro­tec­tion, and spam filtering, and unlike many free providers, it does not scan emails for ads. However, the free plan has lim­i­ta­tions, including no third-party email client support (IMAP/POP3), no automatic contact import from social media, and a custom domain feature limited to five users, which may not be suf­fi­cient for larger teams.

Proton Mail

Proton Mail is a great email option for users who pri­or­i­tize privacy and security. It is an open-source, encrypted email provider based in Switzer­land, operating under strict Swiss privacy laws. Pro­ton­Mail uses end-to-end en­cryp­tion, ensuring that only the sender and recipient can read emails—not even Pro­ton­Mail itself. It also supports OpenPGP en­cryp­tion and offers two-factor au­then­ti­ca­tion (2FA) for extra security.  

With a free plan, users receive 1 GB of storage, which is lower than what many other providers offer. However, paid plans allow users to expand their storage. The free plan also includes one email address and a daily sending limit of 150 messages. It’s important to note that each recipient counts as one email, meaning an email sent to 10 people counts as 10 emails.  

Pro­ton­Mail’s free plan includes one calendar, helping users organize their ap­point­ments. Ad­di­tion­al­ly, the free plan provides access to ProtonVPN, though at a limited speed. Another privacy-focused feature is hide-my-email aliases, allowing users to create up to 10 temporary email addresses to protect their identity while still receiving emails.  

Pro­ton­Mail is an excellent choice for privacy-focused users who want secure, ad-free email with end-to-end en­cryp­tion. However, the limited storage, daily email limit, and lack of IMAP/POP3 support in the free version may be re­stric­tive for some users.  

Who are pro­fes­sion­al solutions best suited to?

At first glance, what these free email providers offer seems to be perfect. With their strong func­tion­al­i­ty and various security mech­a­nisms such as SSL/TLS en­cryp­tion, DKIM sig­na­tures and au­then­ti­ca­tor logins, the free email services are a popular choice in the private sector. 

However, free services are not always the right choice. With free email providers, you are more often than not tied to the brand-specific domain name, which is rather im­prac­ti­cal, es­pe­cial­ly in the business sector, and is often seen as spammy. Email addresses like “firstname.surname@yahoo.com” look less pro­fes­sion­al, es­pe­cial­ly if you run your own website and could actually use its domain.

So, if you primarily want to handle business com­mu­ni­ca­tion using this email address, you need a pro­fes­sion­al solution to create the right im­pres­sion. This may mean having to forego an address from a free email provider if the address is to represent the company or the pro­fes­sion.

 

The ad­van­tages of pro­fes­sion­al email services compared to free email providers

Even if pro­fes­sion­al­ism is often the reason for a company choosing a pro­fes­sion­al email provider, the self-employed and the like, there are also other benefits:

• Free choice of name: Free email providers usually have several million customers reg­is­tered under the same subdomain. The most common first and last names are therefore quickly snapped up, which is why you sometimes have to resort to com­pli­cat­ed al­ter­na­tive solutions (e.g., including numbers in the address). Customers using fee-based email services do not have this problem and can therefore create memorable and precise contact addresses.
• No ad­ver­tis­ing or spam: Free email providers usually use ad­ver­tis­ing to fund the service. Using a pro­fes­sion­al service, on the other hand, rids you of annoying ad­ver­tise­ments and means you can work without dis­trac­tions. In addition, fee-based options are less sus­cep­ti­ble to ad­ver­tis­ing spam. This is because free email addresses are rel­a­tive­ly similar to one another, it’s easy for spammers to “guess” different addresses.
• Increased pro­tec­tion: Not only are pro­fes­sion­al mailboxes less likely to be targeted by spam, phishing, etc., but they are also the safer choice in case your computer gets infected with malware. An account that is getting spammed too much is likely to be blocked by the provider. While the chance of getting your account back with a free email provider is prac­ti­cal­ly zero, just de­scrib­ing the problem is usually enough to regain access with a fee-based provider. 
• Planning security: If you use a pro­fes­sion­al email address, you get a lot of in­de­pen­dence from your provider. If the provider makes changes to the product range or ter­mi­nates the service, the contact address usually remains un­af­fect­ed. You often just need to move to another provider. If a free email provider dis­con­tin­ues its services, the user has no choice but to register a new address.
• Re­sis­tance to typos: Another advantage of having your own email domain instead of a free email subdomain is the catch-all function. This ensures that all incoming messages to a domain are redi­rect­ed to a main mailbox, even if the local part of the address (before the @ sign) cannot be assigned to a specific mailbox due to a typo. This way, pro­fes­sion­al email solutions reduce the like­li­hood of important messages being lost.