GMX users may need help recovering a password, accessing a blocked account, securing a hacked mailbox, finding missing email, fixing delivery problems, using two-factor authentication, reporting phishing, or contacting customer support. GMX provides most customer assistance through its online Help Center, password-recovery tools, and Customer Care contact form rather than a general telephone-support number.
How to Contact GMX Customer Service
- GMX Customer Care Form: Contact GMX Support
- GMX Help Center: GMX Support
- Password Recovery: Reset a GMX Password
- Account Security Help: GMX Security Support
- Customer Service Phone: GMX does not currently publish a general customer-service telephone number for GMX.com accounts.
- GMX Service Provider: 1&1 Mail & Media GmbH
- GMX Contact Address: 1&1 Mail & Media GmbH, Karlsruhe Branch Office, Brauerstr. 48, 76135 Karlsruhe, Germany
- Official Website: GMX.com
GMX’s official Customer Care form asks users to provide their GMX address, a separate contact email address when they cannot access the affected account, the support topic, and details about the problem. For technical issues, GMX recommends including the browser and version, last successful login date and time, and whether the account is being accessed through webmail, a mobile device, Outlook, or another email program.
Best GMX Support Route by Issue
- Forgotten password: Use the official GMX password-recovery page.
- Cannot access recovery email or phone: Continue through the password-recovery process and select the alternative recovery option provided.
- Blocked account: Review the blocked-account instructions and contact GMX Customer Care when support review is required.
- Hacked account: Secure the account, change the password, review security information, and check forwarding and filter settings.
- Lost two-factor authentication access: Use GMX’s 2FA recovery instructions and saved secret key when available.
- Missing email: Check Spam, filters, folders, forwarding, and third-party mail-program settings.
- Email bouncing or not sending: Review the delivery-failure message and GMX sending guidance.
- Phishing or suspicious email: Do not enter credentials through the message and use GMX’s security guidance.
- General technical issue: Search the GMX Help Center or submit the Customer Care form.
How to Reset a GMX Password
If you forgot your GMX password, use the official GMX Password Recovery page.
GMX can normally send a password-reset code using:
- A contact email address previously saved in the GMX account
- A mobile telephone number previously saved in the account
If one of these recovery methods is available, follow the verification steps and create a new password.
If the saved contact information is missing or no longer valid, GMX’s recovery process can present a None of the above option with additional instructions.
GMX Account Locked or Blocked
A GMX account can be blocked for several reasons. GMX states that its security systems may block accounts associated with suspicious activity, spam or phishing, or an account believed to have been compromised.
Some blocked accounts may be eligible for reactivation after GMX verifies account ownership. Reactivation is determined case by case.
GMX states that an account generally cannot be reactivated when it was permanently deactivated because of inactivity or when it was used for prohibited spam or phishing activity.
Use the GMX Blocked Account Help page before submitting a support request.
GMX Account Inactivity and Deletion
GMX currently warns FreeMail users that an account can be automatically deactivated when the user does not log in for more than six months.
Once the inactive account enters the irreversible deletion process, GMX states that stored information cannot be recovered, including:
- Email messages
- Email history
- Contacts
- Other mailbox data
Users who rely on an older GMX address should therefore sign in periodically and keep their security and recovery information current.
What to Do if Your GMX Email Was Hacked
If you believe someone gained unauthorized access to your GMX mailbox, secure the account promptly.
GMX recommends checking several areas after regaining access:
- Change the GMX password.
- Use a unique password that is not used for another website.
- Scan the computer or device for malware.
- Check the saved contact email address.
- Check the saved mobile telephone number.
- Review filter rules.
- Review mail collectors and forwarding settings.
- Check alias addresses and sender names.
- Review personal account information for unauthorized changes.
Unexpected forwarding or filter rules can allow someone who accessed the account to continue receiving copies of messages even after the password has been changed.
GMX Two-Factor Authentication Help
GMX offers two-factor authentication, or 2FA, to add another security step beyond the account password. An authentication app generates a temporary code that is required when signing in.
When 2FA is activated, save the secret key generated during setup in a secure location. GMX may require that key if access to the authentication app is later lost.
If you lose the device containing the authentication app, begin with GMX’s password and two-factor recovery procedures. When the secret key is also unavailable, GMX states that Customer Care may need to verify ownership before 2FA can potentially be removed, and recovery is not guaranteed.
Missing GMX Emails
An email that appears to be missing may have been moved by a filter, classified as spam, downloaded through another email program, or placed in another folder.
Before contacting support:
- Search the entire mailbox.
- Check the Spam folder.
- Review filter rules.
- Check forwarding and Mail Collector settings.
- Review POP3 or IMAP settings if another email program is used.
- Confirm that the correct GMX account is open.
If a legitimate sender’s message appears in Spam, use the Not Spam option to help prevent future messages from that sender from being classified incorrectly.
GMX Email Not Sending or Bouncing
When GMX cannot deliver a message, the sender may receive a mailer-daemon or bounce message explaining the problem.
Common causes can include:
- An incorrect recipient address
- A full recipient mailbox
- An attachment that is too large for the receiving service
- Spam filtering
- A temporary receiving-server problem
Read the complete delivery-failure message before repeatedly resending the email. The error information can help identify whether the problem is with the GMX account, message, recipient, or receiving email provider.
GMX Attachment and Storage Limits
GMX currently advertises up to 65 GB of email storage for its free email service and supports email attachments up to 50 MB.
If an attachment exceeds the normal email limit, GMX provides Cloud-based file sharing as an alternative.
These service limits can change, so check GMX’s current account information when a storage or attachment problem occurs.
GMX Phishing and Fake Support Messages
Be cautious of emails, pop-ups, search results, or telephone numbers claiming to provide GMX account recovery.
A suspicious support message may ask for:
- Your GMX password
- A two-factor authentication code
- A password-reset code
- Remote access to your computer or phone
- Payment for account recovery
- Gift cards or cryptocurrency
Do not use an unfamiliar telephone number found in an unsolicited message. Navigate directly to GMX.com or support.gmx.com when seeking account help.
GMX Customer Care Contact Form
If the Help Center and automated recovery tools do not resolve the problem, use the official GMX Customer Care form.
For the best chance of identifying the issue, include:
- The affected GMX email address
- A different reachable contact email if the mailbox is inaccessible
- The support topic
- The exact error message
- Browser and browser version
- Last successful login date and approximate time
- Whether you use webmail, the GMX app, Outlook, Thunderbird, or another program
- Any relevant troubleshooting already completed
Do not place your password or one-time authentication code in a customer-service request.
Who Owns GMX?
GMX is a service provided by 1&1 Mail & Media GmbH. GMX is also part of United Internet’s consumer applications and Mail & Media business.
GMX’s official company page lists:
1&1 Mail & Media GmbH
Karlsruhe Branch Office
Brauerstr. 48
76135 Karlsruhe
Germany
GMX identifies Montabaur, Germany as the company’s head-office location. GMX does not currently publish a separate U.S. customer-service office for GMX.com users.
Information to Have Before Contacting GMX
- Affected GMX email address
- Separate reachable contact email address
- Last successful login date
- Approximate time the problem began
- Exact error message
- Browser or device
- GMX Mail app version when relevant
- Email program such as Outlook or Thunderbird when applicable
- Whether password recovery was attempted
- Whether two-factor authentication is enabled
- The resolution requested
Do not publicly post passwords, recovery codes, authentication codes, private email messages, personal identification information, or screenshots containing sensitive account data.
How to Escalate a GMX Customer Service Problem
- Search the official GMX Help Center for the exact issue.
- Use password.gmx.com for forgotten-password problems.
- Follow the blocked-account or hacked-account instructions when applicable.
- Collect the error message, browser, device, and last successful login information.
- Submit the official GMX Customer Care form if self-service troubleshooting does not resolve the issue.
- Provide a separate reachable contact email address when the affected GMX mailbox cannot receive replies.
- Keep copies of the support request and any response until the issue is resolved.
GMX Customer Service Reviews and Complaints
CustomerServiceNumbers.com currently has no published GMX customer reviews. The displayed 0 out of 5 rating reflects the absence of submitted ratings and should not be interpreted as a zero-star customer judgment.
Because no GMX reviews have been submitted on this page, there is not enough CustomerServiceNumbers.com feedback to identify reliable positive or negative patterns involving account access, email delivery, spam filtering, storage, security, password recovery, blocked accounts, or customer-service responsiveness.
Frequently Asked Questions
Does GMX have a customer-service phone number?
GMX does not currently publish a general customer-service telephone number for GMX.com users. Use the official GMX Help Center and Customer Care contact form.
How do I contact GMX if I cannot access my email?
Use the official GMX Customer Care form and enter a separate reachable email address in the contact-email field so support can respond outside the inaccessible GMX account.
How do I reset my GMX password?
Go to password.gmx.com and follow the recovery process using the contact email address or mobile number saved in the account.
Can GMX restore an inactive account?
GMX states that a FreeMail account inactive for more than six months can be deactivated and enter an irreversible deletion process. Once deleted for inactivity, the mailbox data cannot be restored.
Can GMX reactivate a blocked account?
Some security-blocked accounts may be reactivated after account ownership is verified. Eligibility is determined case by case. Accounts permanently deactivated for inactivity or serious abuse may not be recoverable.
What should I do if my GMX account was hacked?
Change the password, review recovery information, scan the device for malware, and check filters, forwarding, mail collectors, aliases, sender names, and personal account information for unauthorized changes.
Does GMX offer two-factor authentication?
Yes. GMX supports two-factor authentication using an authentication app that generates temporary login codes.
How much storage does GMX provide?
GMX currently advertises up to 65 GB of email storage for its free email accounts.
What is the GMX attachment limit?
GMX currently allows attachments of up to 50 MB. Larger files can be shared using GMX Cloud.
Who owns GMX?
GMX is provided by 1&1 Mail & Media GmbH and operates within United Internet’s consumer applications business.
Related Email Customer Service Pages
Why Trust CustomerServiceNumbers.com?
CustomerServiceNumbers.com has helped consumers locate customer-service information and share customer-service experiences since 2004. The site is independent and is not owned or operated by GMX, 1&1 Mail & Media GmbH, United Internet AG, Gmail, or Yahoo.
This page is intended to help GMX users find the correct support route for password recovery, blocked accounts, hacked email, missing messages, delivery problems, two-factor authentication, phishing, account security, and other customer-service concerns.
Share Your GMX Customer Service Experience
If you contacted GMX about a login problem, password recovery, blocked account, missing email, hacked account, security concern, two-factor authentication, or another support issue, describe the problem, which official support route you used, the response you received, and whether the issue was resolved.
Privacy warning: Do not publish your password, recovery code, two-factor authentication code, full email contents, private correspondence, home address, telephone number, personal identification information, or other sensitive account data in a public review.
Customer Service Information Disclaimer
CustomerServiceNumbers.com is an independent consumer information and review website and is not affiliated with GMX, 1&1 Mail & Media GmbH, or United Internet AG. CustomerServiceNumbers.com cannot access GMX accounts, reset passwords, reactivate mailboxes, recover deleted email, remove security blocks, change two-factor authentication settings, or respond on behalf of GMX. Support procedures, storage limits, security features, account policies, and contact methods can change. Use GMX’s official Help Center and Customer Care resources for account-specific assistance.