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IMAP migration
Provider guide: cPanel / Plesk / ISPConfig

Migrate email from cPanel, Plesk or ISPConfig hosting

To migrate email from cPanel, Plesk or ISPConfig hosting, use the mail server of your hosting, usually mail.yourdomain, on port 993 with SSL/TLS, your full address as username and the mailbox password. Our free tool copies every folder to the new provider over IMAP, 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 find the right mail server for your hosting

What to prepare at the provider before you start.

  1. 1

    Open the email accounts page

    In cPanel go to Email Accounts, in Plesk to Mail, in ISPConfig to Email Mailbox. Each lists your addresses and lets you set a password for any of them.

  2. 2

    Read the client settings

    cPanel has a "Connect Devices" or manual settings view showing the incoming server for each address. Plesk and ISPConfig show similar details, or your host can give you the hostname.

  3. 3

    Decide between domain and server hostname

    If mail.yourdomain has a valid SSL certificate, use it. If not, use the server hostname your host gave you; it carries a valid certificate for the server itself.

  4. 4

    Reset any unknown passwords

    The control panel lets you set a new mailbox password without touching the messages. Write the passwords down for the tool, one per mailbox.

  5. 5

    Run the copy

    Open the tool with cPanel / Plesk selected, type the server, then each address and password. Test, confirm from the destination inbox and start. Up to 10 mailboxes per batch.

Exact IMAP settings

SettingValue
IMAP servercPanel: your domain's mail.yourdomain if it has a valid SSL certificate, otherwise the server hostname
Plesk and ISPConfigUsually mail.yourdomain; ask your host if unsure
Port993 (SSL/TLS, recommended by cPanel); 143 with STARTTLS also supported
SecuritySSL/TLS
UsernameYour full email address
PasswordThe mailbox password, not the control panel password

With cPanel, if the domain has no valid certificate, use the server hostname and expect certificate warnings when it does not match the domain. We have verified the cPanel behaviour; for Plesk and ISPConfig we only give the usual convention.

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.

  • Certificate name mismatch

    The mail server's certificate is issued for the server hostname, not your domain. Use the server hostname instead of mail.yourdomain, or ask your host to issue a certificate for the mail subdomain.

  • Wrong username format

    Mailboxes in these panels are logged in with the full address. Using only the part before the @ makes the login fail on most setups.

  • The mail subdomain does not resolve

    If your domain's DNS has already moved, mail.yourdomain may now point somewhere else. Use the old host's server hostname, which keeps pointing to the hosting account.

  • The server limits connections

    Shared hosting often caps simultaneous IMAP connections per account. Close other mail clients and run the copy again; it resumes without duplicating anything.

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.

Hosting mailboxes are usually Dovecot over IMAP, which handles folders, subfolders, dates and read flags well, and these are what the tool copies. Forwarders, autoresponders, mailing lists and spam filters configured in cPanel, Plesk or ISPConfig are part of the hosting platform and are not copied. Large archives can take a while to copy; the tool skips any message above 50 MiB and shows what it skipped, so check those separately if they matter.

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 cPanel email to another provider for free?
Yes. The tool is free, needs no signup and handles up to 10 mailboxes per batch. You need the mail server of your hosting and a login for each mailbox.
How do I know which server to use?
In cPanel, the manual settings view of each address shows the incoming server. In Plesk and ISPConfig it is usually mail.yourdomain; your host can confirm it.
Why do I get a certificate error?
Usually because the certificate belongs to the server hostname and not to your domain. Use the hostname that the certificate was issued for.
Do I need the control panel password?
No, and you should not use it. The tool needs the password of each mailbox, which you can reset in the panel.
Does it copy forwarders and autoresponders?
No, only the messages. Recreate forwarders and autoresponders at the new provider.
What if my hosting is cancelled soon?
Run the copy before the service ends, and again right after your MX records change. The second run only brings what is missing.

Is your mail going to Hostbrid?

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

Manage your sites, servers and email.

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.