Set up a mailbox in your email app

Set up your mailbox on your phone, in Outlook or Thunderbird – with all details to copy.

2 minute read Updated 14.11.2026

You have created a mailbox (on your domain’s page under E-mail)? Here’s how to read and send your mail.

Easiest: in the browser

Open webmail.nexus-servers.de and log in with your full e-mail address and the mailbox password. Done.

In a mail client or on your phone

Add a new account. If the program asks for “manual setup”, use these values:

Incoming (IMAP)Outgoing (SMTP)
Servermail.nexus-servers.demail.nexus-servers.de
Port993465 (or 587)
EncryptionSSL/TLSSSL/TLS (with 587: STARTTLS)
Usernameyour full e-mail addressyour full e-mail address
Passwordmailbox passwordmailbox password
  • iPhone: Settings → Mail → Accounts → Add Account → Other → Add Mail Account.
  • Android/Gmail app: Add account → Other → Personal (IMAP).
  • Outlook: File → Add account → Advanced options → “Let me set up my account manually” → IMAP.
  • Thunderbird: Add account → enter your details → “Configure manually”.

If it doesn’t work

  • Login fails: always use the whole address as username (e.g. info@your-domain.com), not just info. Forgot the password? Set a new one for the mailbox on your domain’s page.
  • Mails don’t arrive: is e-mail turned on on your domain’s page? If the nameservers were changed recently, it can take up to a day.
  • Mails end up in the recipient’s spam: we set up SPF, DKIM and DMARC automatically. If your domain’s page shows a hint “Check e-mail settings”, follow the steps there.

Keeping an eye on security

The shield icon next to the mailbox opens the security page: recent logins, failed attempts and emails sent per day. More: Mailbox security: understanding logins and warnings.

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