Why GMX Mail Isn't
Working: A Troubleshooting
Guide
GMX Mail serves millions globally. Issues range from simple network
problems to complex account configurations. In many reported cases,
users experience GMX mail not working due to these common causes.
This presentation outlines systematic troubleshooting steps for
resolution.
Step 1: Initial Checks
Internet
Connection
GMX Service
Status
Device Restart
Verify stable
Check GMX's
device restart.
network
official status page.
connectivity.
Perform a full
Browser/App
Test
Try a different
browser or app.
Step 2: Login and Account Specifics
Correct Credentials
Account Blocked
Double-check username and password.
Failed attempts may block access.
Two-Factor Authentication
Suspicious Activity
Ensure 2FA codes are correct.
Check for security alerts.
Step 3: Sending and Receiving Mail
Mailbox Quota
Incorrect Server Settings (Mail Clients)
GMX free accounts have 2 GB storage. Delete old emails
•
IMAP: imap.gmx.com, Port 993 (SSL/TLS).
to free space.
•
POP3: pop.gmx.com, Port 995 (SSL/TLS).
Attachment Size
•
SMTP: mail.gmx.com, Port 587 (STARTTLS) or 465
(SSL/TLS), requiring authentication.
GMX has a 50 MB per email limit.
Firewall/Antivirus
Temporarily disable to check for interference.
Step 4: Browser and Application
Troubleshooting
Clear Browser Cache & Cookies
Accumulated data can cause errors.
Disable Browser Extensions
Some extensions may conflict.
Update Software
Ensure latest versions are installed.
Mobile App Data
Clear GMX Mail app data/cache.
Step 5: Advanced Issues and
Security
Email Blacklists
Your IP or server may be blacklisted.
Account Compromise
Change password immediately.
Email Filters/Rules
Review GMX settings.
Forwarding Settings
Verify no unintended forwarding.
Step 6: Interpreting
Common Error Messages
Authentication failed
Incorrect username/password
or server settings.
Connection timed out
Network issues or server
overload.
Mailbox unavailable
Account suspended, deleted,
or full.
Quota exceeded
Mailbox storage limit reached
(2 GB).
When to Contact GMX Support
All Steps Exhausted
If issues persist.
Persistent Outages
When GMX confirms widespread problems.
Account Security
If hacked or locked.
Contact Channels
Use FAQ, forums, or direct form.