Provider
App password
Connect GMX
Connect your GMX mailbox with an app password over IMAP and SMTP. Mailera tests the login before saving, so you know right away whether the mailbox works.
Connection steps
Mailera also shows these instructions next to the input field when you add a GMX mailbox.
- In GMX: Email Settings → POP3 & IMAP → enable access via POP3 and IMAP, then save.
- If 2-step verification is enabled: create an app password under Security. Otherwise, use your GMX password.
- Enter the password in the field beside this guide.
What you need
- Enable IMAP in settings
- Account password can be used
Note GMX may send a confirmation email when a new app signs in for the first time.
Provider links
Servers
| Servers | Host | Port | Security |
|---|---|---|---|
| Incoming email (IMAP) | imap.gmx.com | 993 | SSL/TLS |
| Outgoing email (SMTP) | mail.gmx.com | 587 | STARTTLS |
Addresses at gmx.net, gmx.de, gmx.at, and gmx.ch use imap.gmx.net and mail.gmx.net — Mailera selects these automatically based on the address.
What Mailera can do with GMX
- Receive and read email messages in all folders
- Send, reply to, and forward email messages
- Move email messages between folders
- View email messages in Junk Email and move them to Inbox
- Monitor continuously and notify you of new email messages via webhook
Published limits
Mailera has no official sending limit figures for GMX. Send at a typical user's pace.
Addresses Mailera recognizes
- gmx.com
- gmx.net
- gmx.de
- gmx.at
- gmx.ch
- gmx.us
- gmx.co.uk
- gmx.fr
- gmx.es
- gmx.*
Mailera also recognizes custom domains using GMX through their MX records.
Other providers
Outlook
Gmail
Yahoo Mail
iCloud Mail
Zoho MailFastmail
AOL Mail
Mail.com
Yandex Mail
Mail.ru
Naver Mail
Daum Mail
- Custom IMAP
Names and logos belong to their respective owners. Mailera is not affiliated with or certified by these providers.
Connect your first GMX mailbox
Create a free workspace, select GMX, and follow the steps above — Mailera checks the login before saving.

