At a glance
| From | any IMAP server · imap.example.com:993 (SSL) |
|---|---|
| To | any IMAP server · imap.example.com:993 (SSL) |
| Copied | Every folder, read and flagged state, received dates. Duplicates are skipped. |
| Source mailbox | Opened read-only; nothing is changed or deleted. |
| Calendars and contacts | Not over IMAP: export and import .ics/.vcf |
Step by step
Prepare the old IMAP server
Use the mailbox address (or user name) and password. Type the domain once: the console suggests the server from the MX record, SRV record or autoconfig.
Prepare the new IMAP server
Use the mailbox address (or user name) and password. Type the domain once: the console suggests the server from the MX record, SRV record or autoconfig.
Enter the servers and accounts
In the console, use imap.example.com as the source and imap.example.com as the target (port 993, SSL). Add the accounts one per line (email, then password) or upload a CSV. To let each person type their own password, send invitation links instead.
Validate and estimate
"Validate accounts" tries every login; "Estimate size and time" shows the message count, total size and free space on the target.
Launch and watch
Start the migration and follow progress per account and folder with a live action log. Copied messages are never copied twice, and an interrupted run continues where it stopped.
Switch MX
After the first copy, point the MX record to the new provider and press "Final sync" to bring over mail that arrived in between.
Good to know about the old IMAP server
- Folder prefixes (INBOX.), separators (. or /) and special folders are detected on both sides and translated automatically.
Questions
Will my email be deleted from the old IMAP server?
No. The source is opened read-only; messages are copied and even their read state stays the same.
Are folders, read status and dates kept?
Yes. Every folder, the read and flagged state and the received date are copied as they are. Sent, Drafts, Trash and Junk are mapped to the target's own folders.
How long does it take?
Small mailboxes finish in minutes; a 5 GB mailbox usually takes one to three hours.
Can I move many mailboxes at once?
Yes. Add hundreds of mailboxes as a list or CSV and several run in parallel. If you do not want to collect passwords, send invitation links so each person types their own.
Are calendars and contacts moved too?
IMAP moves email only. the old IMAP server or the new IMAP server does not offer CalDAV/CardDAV, so export calendars and contacts as .ics/.vcf files and import them.
What does it cost?
You pay for days of access: pick a day, a week or a month and move unlimited accounts and messages in that time. There is a free trial for one small mailbox.
Last updated: 18 September 2026