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IMAP migration
Provider guide: IONOS

Migrate IONOS email to another email provider

To migrate IONOS email, use the IMAP server for your country, such as imap.ionos.es, imap.ionos.com or imap.ionos.co.uk, on port 993 with SSL/TLS. The username is the full email address and the password is the mailbox password. Our free tool copies every folder to the new provider, with no signup and no deletions.

  • Free, no signup
  • Up to 10 mailboxes at once
  • Passwords never stored
  • No duplicates when you repeat

How to get your IONOS mailbox ready for the copy

What to prepare at the provider before you start.

  1. 1

    Identify your IONOS country server

    Look at the IONOS site you manage your contract on. The country version tells you which IMAP host to use. If you are unsure, the IONOS help page "mail server details" lists the one for your market.

  2. 2

    Find the mailbox password

    IONOS has no separate app password for mail: you use the password of the mailbox. If you do not remember it, reset it from the Email section of your IONOS control panel, which does not affect the stored messages.

  3. 3

    Check SSL/TLS

    IONOS recommends SSL/TLS on port 993 for IMAP. The tool already uses that. Avoid port 143 without encryption.

  4. 4

    Add the mailboxes to the tool

    Open the tool with IONOS selected as the source (it pre-fills imap.ionos.es; for IONOS accounts from other countries, usually imap.ionos.com, .de, .fr or .co.uk, check your IONOS panel and choose "Other IMAP server"), type each full address with its password and test the logins. You can add up to 10 mailboxes in one batch.

  5. 5

    Create the destination mailboxes and confirm

    They need to exist at the new provider before you start. Open the confirmation message in each destination inbox and the copy begins.

Exact IMAP settings

SettingValue
IMAP server (pre-filled by the tool)imap.ionos.es
IMAP server (other countries)imap.ionos.com (international), imap.ionos.co.uk (UK); other countries have their own server
Germany, FranceUsually imap.ionos.de and imap.ionos.fr; confirm in your IONOS help or control panel
Port993
SecuritySSL/TLS
UsernameYour full email address
PasswordThe mailbox password you set in IONOS

The tool pre-fills imap.ionos.es when you choose IONOS. For IONOS accounts from other countries, choose "Other IMAP server" and type the server. IONOS publishes one server name per country. We have confirmed imap.ionos.com and imap.ionos.co.uk in their help; for the other countries the names above are the usual ones, so check your IONOS help page if the test fails.

Start the migration

The tool already has the source selected. Choose where the mail is going, add your mailboxes and confirm from the destination inbox.

Passwords are used once. They travel encrypted to an isolated job that copies the mail and is deleted afterwards. They are never stored, logged or sent back.

Common errors and how to fix them

Almost every failed IMAP copy comes down to the source login. This is what usually happens with this provider.

  • Authentication failed with the right password

    Make sure the username is the complete address, domain included, not just the part before the @. IONOS also expects SSL/TLS to be on. Retype the password by hand instead of pasting, in case of hidden characters.

  • The host cannot be reached

    You may be using the wrong country server. Check the IONOS help for your market, or the mail settings in your control panel, and compare the host name with the table above.

  • It works with some mailboxes but not others

    Each IONOS mailbox has its own password. A mailbox created long ago may use an old one, or be an alias or a forwarder that has no real inbox. Only real mailboxes can be copied.

  • Too many failed attempts

    Repeated bad logins may make the server pause new attempts for a while. Wait a few minutes after correcting the password, then test again.

What is and is not copied

The tool copies email and nothing else, over IMAP, with imapsync underneath.

Copied

  • The messages of every folder, subfolders included.
  • Original dates and the read or unread state.
  • Only what is missing at the destination, so repeating the copy creates no duplicates.

Not copied

  • Contacts and calendars: they do not travel over IMAP. Export them as vCard or ICS from the source provider.
  • Filters, signatures and rules of the old mailbox: recreate them in the new one.
  • Messages above 50 MiB are skipped. The tool never deletes anything from the source.

IONOS mailboxes are plain IMAP, which makes them a straightforward source: every folder, including those you created, comes across with its messages, dates and read flags. Messages that sit in Spam or Trash are also folders and are copied unless you empty them first. Webmail rules, autoresponders and the address book belong to the IONOS platform, not to IMAP, so recreate them at the new provider. Domains and DNS are separate from the mailboxes and are not touched.

What the tool guarantees

  • Free, no signup

    No account and no payment. It copies up to 10 mailboxes per batch.

  • Passwords are used once

    They serve that copy and are never stored. Nothing is deleted from the source mailbox either.

  • The destination must be yours

    We leave a confirmation message in the destination inbox. The copy starts only when you open it.

FAQ

Frequently asked questions

Can I migrate IONOS email to another provider for free?
Yes. The tool is free, needs no signup and copies up to 10 mailboxes per batch. You need the full address and password of each IONOS mailbox, and destination mailboxes already created.
Which IMAP server does IONOS use?
It depends on the country of your contract: imap.ionos.com for the international site and imap.ionos.co.uk for the UK are confirmed in IONOS help. Other countries have their own, usually imap.ionos.de or imap.ionos.fr. The tool pre-fills imap.ionos.es; for any other server, choose "Other IMAP server" and type it.
Do I need an app password for IONOS?
No, the mailbox password is used. If you lost it, reset it in your IONOS control panel; the messages are not affected.
What if I am also moving my domain?
Mailboxes and domains are separate. You can copy the mail first, then change the DNS and MX records when you are ready. Run the tool once more after the switch to catch the last messages.
Does the copy delete mail on IONOS?
No. The tool only reads from IONOS. Your old mailboxes remain exactly as they were until you cancel the contract.
Are aliases and forwards copied?
No. They are configuration of the IONOS service, not messages. Recreate the aliases at the new provider, and copy only mailboxes that really store mail.

Is your mail going to Hostbrid?

Create the mailboxes first, then bring the old mail across with the import tool in your panel.

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Forgot your password?

Free, and it takes a minute.

At least 8 characters. Not all digits, not a common one.

We'll email you to confirm the account.