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
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
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
Check SSL/TLS
IONOS recommends SSL/TLS on port 993 for IMAP. The tool already uses that. Avoid port 143 without encryption.
- 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
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
| Setting | Value |
|---|---|
| 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, France | Usually imap.ionos.de and imap.ionos.fr; confirm in your IONOS help or control panel |
| Port | 993 |
| Security | SSL/TLS |
| Username | Your full email address |
| Password | The 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.
Frequently asked questions
Can I migrate IONOS email to another provider for free?
Which IMAP server does IONOS use?
Do I need an app password for IONOS?
What if I am also moving my domain?
Does the copy delete mail on IONOS?
Are aliases and forwards copied?
Keep reading
Other guides for the same tool, and the Hostbrid email page.
IMAP migration tool
Any source and destination, with every provider and the limits.
OVHcloud
OVHcloud and the MX Plan server.
GoDaddy
GoDaddy Workspace Email.
cPanel / Plesk / ISPConfig
Hosting with cPanel, Plesk or ISPConfig.
Professional email at Hostbrid
If Hostbrid is where the mail is going, see the email plans.
Is your mail going to Hostbrid?
Create the mailboxes first, then bring the old mail across with the import tool in your panel.