Migrating Email Between Contracts at IONOS.com (Formerly 1and1.com)

Posted by on Jun 20, 2023 in Standard post format, Technology, Web Development
  1. Confirm email account passwords
  2. Backup site and DB
    1. For WP, you can use All-in-one Migration plugin to export all website files into ZIP
    2. Otherwise, ZIP up site files for SFTP at
    3. Export DB through PHPMyAdmin
  3. Remove external domain from existing contract
  4. Setup domain in new contract
  5. Setup hosting/DB in new contract
    1. For All-in-one WP Migration plugin, install WP and install plugin, import file
    2. Otherwise, FTP files into place on server at
  6. Setup mailboxes for all email accounts that are migration
  7. Use migration tool for each email address
    1. old email backup: brad1_testdomain.com_0@mailboxbackup.info (PW: OLDPASSWORD)
    2. old email backup: brad2_testdomain.com_0@mailboxbackup.info (PW: OLDPASSWORD)

IONOS Name Servers

  • ns1045.ui-dns.org
  • ns1045.ui-dns.de
  • ns1045.ui-dns.biz
  • ns1045.ui-dns.com

Webmail Access

Use the following information for manual setup:


User name: {The email address that you set up and that you want to use.}
Password: {Your selected email password.}

Incoming Server

imap.ionos.com –> IMAP (recommended)
Incoming port (SSL must be activated): 993

pop.ionos.com –> POP (old tech)
Incoming port (SSL must be activated): 995

Outgoing server (SMTP)

Outgoing port (TLS must be activated): 587
Outgoing server requires authentication