GMX Mail Not Receiving Emails
GMX's spam filtering runs noticeably more aggressive than most providers by default — it's the most common reason expected mail just doesn't show up.
1. Check the Spam folder first
Genuinely, this resolves the majority of "GMX isn't receiving my mail" reports I see. Find it there, mark it "Not Spam," and add the sender to your address book so it doesn't happen again.
2. Check your spam filter sensitivity
- Settings → POP3 & Filters (or Security) → Spam protection.
- Set to something stricter? Try lowering it a notch and see if the problem comes back.
3. Check for a POP3 collection conflict
If you're also collecting this account into another app via POP3 rather than IMAP, some setups remove mail from the server after downloading — so it shows up in one app but never on the GMX website or in anything else.
- Check that POP3 client's settings for "leave a copy on the server."
- Want mail everywhere? Switch that app to IMAP instead.
4. Check storage quota
A full mailbox bounces new mail back to the sender without always surfacing a clear warning inside GMX itself. Check your used storage under Settings.
5. Confirm mail isn't being auto-forwarded elsewhere
Settings → POP3 & Filters → Mail Collection/Forwarding — check for an old rule sending copies somewhere you no longer check.
6. Login redirects straight to the GMX Help page instead of your inbox
This is a recurring, well-documented pattern with GMX rather than something specific to your device — a lot of users hit this exact symptom periodically, and it tends to be temporary. Try again after a while, and if it keeps happening across several days, that's worth reporting to GMX directly rather than continuing to troubleshoot your own settings.
7. Webmail works fine, but every third-party app suddenly can't connect
If GMX works normally when you sign in directly on the website but no third-party app can connect anymore — despite a correct password and settings that used to work — this has been reported as something that happens on GMX's end periodically, not a client-side misconfiguration. Double-check your settings are current first, but if everything genuinely matches and it still won't connect, this is one of those "wait it out" situations rather than something you can fix locally.