Webmail

Gmail is a mailbox provider by Google. It is the largest email service worldwide, with 1.8 billion users. It is accessible via a web browser (webmail), mobile app, or through third-party email clients via the POP and IMAP protocols. Users can also connect non-Gmail e-mail accounts to their Gmail inbox. The service was launched as Google Mail in a beta version in 2004. It came out of beta in 2009.

Yandex LLC (, ) is a Russian technology company that provides Internet-related products and services including a web browser, search engine, cloud computing, web mapping, online food ordering, streaming media, online shopping, and a ridesharing company.

iCloud is the personal cloud service of Apple. Launched on October 12, 2011, iCloud enables users to store and sync data across devices, including Apple Mail, Apple Calendar, Apple Photos, Apple Notes, contacts, settings, backups, and files, to collaborate with other users, and track assets through Find My. iCloud's client app is built into iOS, iPadOS, watchOS, tvOS, macOS, and visionOS, and is available for Microsoft Windows. iCloud may additionally be accessed through a limited web interface.

Outlook.com, formerly Hotmail, is a free personal email service offered by Microsoft. It also provides a webmail interface accessible via web browser or mobile apps featuring mail, calendaring, contacts, and tasks services. Outlook can also be accessed via email clients using the IMAP or POP protocols.

REDIRECT Outlook.com

thumb|upright=1.35|A user's email inbox at Roundcube Webmail (or web-based email) is an email service that can be accessed using a standard web browser. It contrasts with email service accessible through a specialised email client software. Additionally, many internet service providers (ISP) provide webmail as part of their internet service package. Similarly, some web hosting providers also provide webmail as a part of their hosting package.

American email service

Naver (; stylized as NAVER) is a South Korean online platform operated by the Naver Corporation. The company's products include a search engine, email hosting, blogs, maps, and mobile payment.

Russian internet company

Lycos, Inc. (stylized as LYCOS) is a web search engine and web portal established in 1994, spun out of Carnegie Mellon University. Lycos also encompasses a network of email, web hosting, social networking, and entertainment websites. The company is based in Waltham, Massachusetts, and is a subsidiary of Ybrant Digital.

MobileMe (formerly .Mac and originally iTools) is a discontinued subscription-based collection of online services and software offered by Apple Inc. All services were gradually transitioned to and eventually replaced by the free iCloud, and MobileMe ceased on June 30, 2012, with transfers to iCloud being available until July 31, 2012, or data being available for download until that date, when the site finally closed completely. On that date all data was deleted, and email addresses of accounts not transferred to iCloud were marked as unused.

South Korean web portal

web search engine

Roundcube is a web-based IMAP email client written in PHP. It uses Ajax throughout its interface and is licensed under the GNU GPL version 3 or later, with exceptions for skins and plugins.

Rediff.com, stylized as rediff.com, is an Indian news, information, entertainment, email service and shopping website. Founded by Ajit Balakrishnan in 1996, it was the first Indian website to become a mainstream news media organization. It is headquartered in Mumbai with offices in Bengaluru, New Delhi, and New York City.

Zimbra Collaboration, formerly known as the Zimbra Collaboration Suite (ZCS) before 2019, is a collaborative software suite that includes an email server and a web client.

South Korean web portal

free web-based email service provided by AOL

Russian free email service

Mailfence is a Belgian encrypted email service with a focus on security and privacy that offers OpenPGP based end-to-end encryption and digital signatures for usage in emails. It was launched in November 2013 by ContactOffice Group, which has been operating an online collaboration suite since 1999.

thumb|Seznam.cz headquarters in Prague thumb|Seznam.cz branch in Brno-Štýřice Seznam.cz (or Seznam, list in Czech) is a web portal and search engine in the Czech Republic. Founded in 1996 by Ivo Lukačovič in Prague as the first web portal in the Czech Republic. Seznam started with a search engine and an internet version of yellow pages. Today, Seznam runs almost 30 different web services and associated brands. Seznam had more than 6 million real users per month at the end of 2014. Among the most popular services, according to NetMonitor, are its homepage seznam.cz, email.cz, search.seznam.cz a

Jmail is a browser-based archive of the Epstein files, which were released by the United States House Committee on Oversight and Government Reform under the Epstein Files Transparency Act (EFTA). The website was initially stylized in a Gmail-based interface, and later added the interfaces of other sites (Facebook, Google Drive, YouTube, Spotify, Google Photos, Google Flights, Amazon, Wikipedia), with the goal of making the EFTA releases easier to access and browse.

mail.com is a web portal and web-based email service provider owned by the internet company 1&1 Mail & Media Inc., headquartered in Philadelphia, Pennsylvania, United States. 1&1 Mail & Media Inc. is a subsidiary of United Internet Group, a publicly listed internet services company based in Montabaur, Germany.

mail that is delivered using a combination of electronic and physical delivery

Empas () was a South Korean internet search engine and web portal.

Web portal with free e-mail service from German origin

RocketMail was one of the first major free webmail services. The service was originally a product of Four11 Corporation. For a brief time, RocketMail battled with Hotmail for the number-one spot among free webmail services. Four11, including RocketMail, was acquired by Yahoo! in 1997 for $92 million. Yahoo! assimilated the RocketMail engine. Yahoo! Mail was essentially the old RocketMail Webmail system.

Posteo is an email service provider based in Berlin, Germany, offering paid email accounts for individuals and businesses. The service gained prominence during the aftermath of the post-2013 global surveillance disclosures, especially for its high standard security features and relative anonymity as it does not require any private information in the registration process.

Hushmail is an encrypted proprietary web-based email service offering PGP-encrypted e-mail and vanity domain service. Hushmail uses OpenPGP standards. If public encryption keys are available to both recipient and sender (either both are Hushmail users or have uploaded PGP keys to the Hush keyserver), Hushmail can convey authenticated, encrypted messages in both directions.

Fastmail is an subscription-based email hosting company based in Melbourne, Australia. In addition to its Fastmail-branded services, the company also operates Topicbox, a mailing list service, and Pobox, an email service it acquired in 2015.

French e-mail service

SIGAINT was a Tor hidden service offering secure email services. According to its FAQ page, its web interface used SquirrelMail which does not rely on JavaScript. Passwords couldn't be recovered. Users received two addresses per inbox: one at sigaint.org for receiving clearnet emails and the other at its .onion address only for receiving emails sent from other Tor-enabled email services. Free accounts had 50 MB of storage space and expired after one year of inactivity. Upgraded accounts had access to POP3, IMAP, SMTP, larger size limits, full disk encryption, and never expired.

Gmane (pronounced "mane") is an e-mail to news gateway. It allows users to access electronic mailing lists as if they were Usenet newsgroups, and also through a variety of web interfaces. Since Gmane is a bidirectional gateway, it can also be used to post on the mailing lists. Gmane is an archive; it never expires messages (unless explicitly requested by users). Gmane also supports importing list postings made prior to a list's inclusion on the service.

Italian Web portal