GMX Mail

GMX Mail is a free advertising-supported email service provided by GMX (Global Mail eXchange, in Germany: Global Message eXchange). Users may access GMX Mail via webmail as well as via POP3 and IMAP4 protocols. Founded in 1997, GMX is a subsidiary of United Internet AG, a stock-listed company in Germany,[1] and a sister company to 1&1 Internet and Fasthosts Internet.[1] In addition to an email address, each GMX account includes a Mail Collector, Address Book, Organizer, and File Storage. Every user can register up to 10 individual GMX email addresses. Premium or not, users are greeted by pop up ads at login. GMX is currently the only large email provider to support popup ads.[2] Currently GMX Mail has more than 11 million active users.[3]

GMX Mail
Type of site
Webmail, POP3, IMAP4
Available in4 languages German English, Spanish and French
OwnerGMX Internet Services, Inc.
Subsidiary of United Internet
Users11 million active users
Current statusOnline
Content license


GMX Mail provides users two-factor authentication (2FA) to secure their email accounts, which is a form of Multi-factor authentication.


Features included in the free versions of the GMX Mail account differ between[4] and

Comparison of and Notes
Language of interfaceGermanEnglish, French, Spanish
Sign-up Users with a German, Austrian or Swiss
IP address will be redirected to
2-Factor AuthenticationYesNo
File storage ("Media Center")1 GB2 GB[5]
Email storage1 GB65 GB[5] max. 1.5 GB if GMX MailCheck installed
Maximum mail folder levels32Applicable to webmail and IMAP
Attachment limit50 MB
Account deactivation after inactivity6 months
SMTP supportYes
POP3 supportYes
IMAP4 supportYes

Additional functionalities:

  • File sharing capabilities[5]
  • Virus and spam protection[6]
  • Drag and Drop capability for files and emails[7]
  • Fetching external POP3 accounts

Email accounts can be registered with a choice of .com, and .us, amongst many others. It allows the addition of up to 10 add-on addresses at different GMX domains. Its "mail collector" allows for the collection of email from most free email providers including Yahoo, Live, Hotmail and GMail as well as send mail from these addresses, allowing the management of multiple accounts from one single location. Another feature is its active community participation, where users can suggest features.

GMX developed slightly different clients for their users in Germany and for those internationally. Both remain free for email service, and will direct users to the appropriate login website through geolocation technology, to or respectively. The GMX Mail service is based on Qooxdoo, an open source ajax web application framework.


Following the closure of Lycos Europe and its decision to close Caramail, a popular French webmail service, in February 2009 GMX bought the Caramail domain name and transferred older Caramail users to its new service.[8] In 2010, GMX acquired American internet domain and its email customers.[9]


  1. GMX: About, retrieved 12 May 2011
  2. Stern, Joanna: GMX Global Mail Exchange (Beta) Review in Laptop Magazine, June 13, 2008
  3. "GMX MAIL | CrunchBase". Retrieved 2015-11-05.
  4. "GMX Mail-Produkte". Archived from the original on 8 May 2012. Retrieved 15 May 2012.
  5. GMX: File Size, Storage & Sharing
  6. GMX: Security Features
  7. GMX: Drag & Drop Capability
  8. GMX Press release 17 February 2009
  9. The Hosting News: GMX Acquires, 22 September 2010

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