About GMX
GMX is a German email provider founded in 1997 and part of the United Internet group, which also operates WEB.DE. GMX offers free FreeMail accounts and paid plans with cloud storage. When you register a new mailbox, GMX checks a mobile number by sending a code, and the number can later be used for password resets and login security.
Why People Receive GMX Codes Online
Many people keep a second email address for newsletters, online shops, contests and trial accounts, so their main inbox stays private. A temporary number covers the identity check when that second GMX address is created.
How to Create a GMX Mailbox With a Free Number
Start the GMX registration and fill in the requested details.
When asked for a mobile number, use one from our free numbers. German numbers are the natural choice for a German provider.
Refresh the number's inbox after 20–30 seconds and enter the code from the newest message.
Finish the sign-up and set a strong password.
If GMX does not accept the number, choose another German number or try again later.
Change the Recovery Number Afterwards
Your mailbox will receive password resets for other services. If the only recovery option is a public number, someone else could reset your GMX password. Right after registration, add a phone number or recovery email you control and enable two-factor authentication.
Keeping Marketing Out of Your Main Inbox
A separate GMX address for sign-ups keeps your main email out of marketing lists, and a temporary number during registration does the same for your personal phone number.
GMX and Proxied Mobile Proxies
Proxied provides 4G/5G mobile proxies with real mobile carrier IPs in countries including Germany, so an account registered with a German number can also be used from a German mobile network.