MW IMAP-BOX Copy

Moving from one email provider to another can be a time-consuming task. In many cases, users do not just want to transfer single messages, but entire mailboxes including folder structures, subfolders, and already organized emails. This is exactly where MW IMAP-BOX Copy comes in.

MW IMAP-BOX Copy is a practical and freely accessible email migration tool that allows users to copy emails from one mailbox to another with ease. The tool mainly supports IMAP, which is especially important when the original folder structure should remain intact.

Use Cases

• Changing hosting providers
• Moving to a new mail server
• Merging multiple mailboxes
• Backing up important email archives
• Transferring existing folder structures

A major advantage is that the tool runs directly in the browser on a web server and does not require a complicated local installation on a computer.

Why use IMAP instead of POP3?

For email migration, IMAP is the recommended protocol. The reason is simple: IMAP supports folders and the complete mailbox structure, while POP3 mainly downloads emails from the inbox only.

Requirements

• PHP 7.4 or higher
• Enabled IMAP extension in PHP
• Working web server (Apache or nginx)
• Login credentials for source and target mailbox

Who is MW IMAP-BOX Copy suitable for?

• Private users changing email providers
• Small businesses moving to a new server
• Agencies and administrators migrating customer mailboxes
• Anyone who wants to transfer emails in a structured and reliable way

Connection failed - what to do?

Check the following:

• Server address correct?
• Port set correctly?
• Username or email address correct?
• Password correct?
• SSL enabled or disabled correctly?

In many cases, the issue is caused by an incorrect combination of port and SSL settings.

Timeout with large mailboxes

If a folder contains many emails, the process may time out. In this case, it is better to migrate the mailbox folder by folder - select only a few folders at a time.

Missing IMAP extension

If the PHP IMAP extension is not installed, the tool cannot work. The package php-imap must be installed or enabled on the server.

Folder structure is missing

This often happens when POP3 is used instead of IMAP. For structured mailbox migration, IMAP should always be used.

What do the migration options mean?

• Do not transfer duplicates: Emails already existing in the target mailbox will be skipped.
• Delete existing duplicates: Removes duplicate emails in the target mailbox.
• Do not create empty folders: Empty folders will not be created on the target side.
• Convert folder names: Maps German folder names to English standard names (e.g. Drafts).

Are my credentials stored?

No. Your email credentials are NOT stored on our servers. All data is processed exclusively in your browser (session) and transmitted directly to the respective mail servers. After closing the browser, all data is automatically deleted.