Yes. You can verify any @Gmx.net address in real time with a direct SMTP handshake that provides 99.7% accuracy. Gmx.net is operated by 1&1 Mail & Media, runs 2 mail servers, enforces 2 of 3 authentication standards, and is currently responding to SMTP.
Every check returns one of three clear outcomes so you know exactly what to do with the address.
The mailbox exists and accepts mail. Send with confidence, the address is deliverable.
The mailbox does not exist, is disposable, or will hard-bounce. Remove it to protect your sender reputation.
The server is catch-all or greylisting, so existence cannot be confirmed. Send selectively and watch engagement.
gmx.net publishes 2 MX records. The primary mail exchanger is mx01.emig.gmx.net, hosted by gmx.net, and it is currently reachable and answering SMTP. Mail is routed through these servers in priority order, lowest number first.
| Priority | Hostname | IP | Status |
|---|---|---|---|
| 10 | mx01.emig.gmx.net | 212.227.17.5 | Reachable |
| 10 | mx00.emig.gmx.net | 212.227.15.9 | Reachable |
220 gmx.net (mxgmx109) Nemesis ESMTP Service readyYes. gmx.net is a valid email provider, operated by 1&1 Mail & Media. Addresses are persistent and real mail reaches a genuine recipient. Individual mailboxes still go stale, so verify each one before you send.
A live SMTP handshake connects to Gmx.net's mail server and asks whether the mailbox exists using the RCPT TO command, without ever transmitting a message. The recipient never sees the check.
Each address runs through 30+ checks including SMTP existence, catch-all detection, role-account filtering, and disposable matching. The same engine has verified billions of addresses since 2012.
Every unverified address is a gamble. Here is what happens when you skip verification and mail a list that has not been cleaned.
Free inboxes get abandoned constantly. Verification drops the dead gmx.net mailboxes before you mail them.
Mistyped gmx.net addresses fail a real SMTP check, so they never turn into a hard bounce.
A clean list keeps your bounce rate low, and a low bounce rate is what protects inbox placement on a big send.
Mailing only live gmx.net addresses raises every rate that matters: opens, clicks, and replies.
Gmx.net is 1&1 Mail & Media, registered through World4You Internet Services GmbH and first seen Dec 9, 1998.
gmx.net is an alternate domain for GMX Mail, operated by 1&1 Mail and Media GmbH under United Internet AG. The domain provides the same free email service as gmx.com with generous storage, calendar integration, and mobile access.
gmx.net shares GMX's authentication infrastructure supporting SPF, DKIM, and DMARC. Anti-spam protections are consistent across all GMX domains. The service adheres to EU GDPR regulations.
The gmx.net mail servers validate recipients and reject invalid mailboxes. The domain does not function as catch-all. Rate limiting and reputation filtering apply uniformly across GMX domains.
Senders emailing gmx.net should follow the same practices as gmx.com. Full SPF, DKIM, and DMARC compliance is essential. GMX applies uniform filtering across all domain variants.
Upload a CSV or TXT list of Gmx.net addresses to the bulk email verifier. Every address runs through a live SMTP handshake plus catch-all, role-account and disposable detection, and you download a clean list when processing completes. For real-time checks at signup, use the real-time email verification API.
CSV or TXT with one email per line. No formatting needed.
Each Gmx.net address is checked with a live server handshake.
Get a verified list with status codes, risk flags, and catch-all detection.
Pay as you go. No subscriptions, and credits never expire.
Everything about verifying email at this domain.
Yes, gmx.net is a valid and active email domain operated by 1&1 Mail & Media. It is the original German version of GMX, one of the most popular email providers in Germany and Europe.
No, gmx.net is not a disposable email provider. It is a permanent free email service and one of the most widely used email domains in Germany with millions of active users.
GMX.net uses 1&1 Mail & Media infrastructure shared with gmx.com and mail.com. MX records point to mx00.1and1.com and mx01.1and1.com.
Yes, with proper consent. GMX.net users are predominantly German-speaking, so ensure compliance with EU GDPR regulations and German data protection laws when sending marketing emails.
GMX.net addresses can be verified via SMTP with reliable accept/reject responses. The infrastructure is shared with gmx.com and mail.com under the United Internet umbrella.
Upload a CSV or TXT list to the bulk email verifier. Every address runs through 30+ checks including SMTP existence, catch-all detection, role-account, and disposable matching. Processing time depends on list size.
99.7% accurate using a direct SMTP handshake with gmx.net's mail servers, the same engine that has verified billions of addresses since 2012.
Other free email provider domains we have audited.