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Fix email dates broken by IMAP migration

All emails showing the migration date instead of the original? Redate.io restores correct dates automatically.

Your emails are never read, never downloaded. Only dates are corrected.
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Every email shows the wrong date after migration

After migrating to Google Workspace, Microsoft 365, or another provider, your email client shows the migration date on every message. Outlook, Apple Mail, Thunderbird - they all display the wrong received date. Sorting by date becomes useless.

Before Redate
JD John Doe Client proposal discussion 11/04/2019 14:32
AS Anna Smith Q3 Budget review 11/04/2019 14:32
MK Marc Klein Project kickoff meeting 11/04/2019 14:32
LR Laura Ross Annual report draft 11/04/2019 14:32
PB Paul Brown Invoice #2847 attached 11/04/2019 14:32
After Redate
JD John Doe Client proposal discussion 15/03/2018 09:41
AS Anna Smith Q3 Budget review 03/09/2017 16:08
MK Marc Klein Project kickoff meeting 22/01/2016 11:25
LR Laura Ross Annual report draft 01/12/2015 08:53
PB Paul Brown Invoice #2847 attached 18/06/2014 14:17
Cannot find emails by date
Legal and compliance risks
Users complaining to IT about broken dates
Sorting by received date is useless

Common after migrations with BitTitan, CloudM, imapsync, GSMMO, or Exchange IMAP import

Real risks

Wrong email dates are a risk, not just an inconvenience

Most people want to fix dates for organization. But incorrect timestamps create real problems that go far beyond a messy inbox.

Unusable as legal evidence

Courts and tribunals rely on email timestamps to establish timelines. An email showing the migration date instead of the actual date cannot serve as proof of when a message was sent or received. In a contract dispute, employment case, or intellectual property claim, this can undermine your entire position.

Tax audit complications

Tax authorities may request emails as supporting documents during an audit. If your invoices, receipts, and exchanges all show the same migration date, you cannot demonstrate the correct timeline. A screenshot of an email with the wrong date has no probative value.

Regulatory non-compliance

Regulations like SOX, HIPAA, FINRA, and GDPR require accurate records with intact metadata. The GDPR explicitly mandates that personal data be kept accurate and up to date. Incorrect email dates can mean failing a compliance audit.

Insurance claim disputes

Insurance claims often depend on proving that a notification, declaration, or communication happened within a specific deadline. If all your emails show the migration date, you cannot prove timely communication, and the claim may be denied.

Fix email dates in three steps

No technical skills required. Redate handles everything automatically.

1

Connect your mailbox

Link your Google Workspace, Microsoft 365, or IMAP mailbox. Admin setup takes 5 minutes with the step-by-step guide.

2

Free scan

Redate scans your mailbox and identifies every email with a wrong date. See the exact count and price before paying anything.

3

Dates restored

Redate fixes each email's date, verifies it, and keeps the original in a safe folder for 30 days. A 10,000-email mailbox takes about 15 minutes.

Compatible with every major email platform

Whether the migration was to Google Workspace, Microsoft 365, or any IMAP server, Redate.io fixes the dates.

Google Workspace

Fix email dates for your entire organization at once. Admin delegation setup in 5 minutes.

Microsoft 365

Restore correct dates in Exchange Online mailboxes. Works with Outlook, OWA, and mobile apps.

Any IMAP Server

GoDaddy, Rackspace, IONOS, Zoho, Zimbra, cPanel, Dovecot, Courier - any server that supports IMAP. No admin access required.

Trust & transparency

Your emails stay safe throughout the process

Redate never reads the content of your emails. The correction process only modifies date information, without accessing the text of your messages.

Your email content is never read

Redate only accesses the technical date information in each email (the headers). The text, attachments, and content of your messages are never viewed, never stored, never transmitted.

Originals kept for 30 days

Before fixing, the original email is moved to a visible 'Redate.io - Originals' folder in your mailbox. Full rollback anytime within 30 days.

GDPR compliant by default

Capritora SRL is a Belgian company operating under EU privacy law. Data Processing Agreement available for B2B customers.

AES-256 encrypted credentials

All stored credentials are encrypted at rest with AES-256-GCM. Redate never stores passwords in plain text.

Zero data loss guarantee

Every fixed email is verified against the original before the process completes. If verification fails, the original remains untouched.

Full audit trail

Every action is logged: scan results, fixes applied, verifications passed. Export the report for compliance documentation.

Fix all dates for less than a single IT hour

Pay only for corrected emails. No subscription. Minimum 29 EUR per mailbox.

The alternative? A consultant at 75-150 EUR/hour (4-8 hours per mailbox) or a full re-migration at 2,000-5,000 EUR.

100% free

Free scan

Redate.io scans your mailbox and shows you exactly how many emails have incorrect dates. No commitment.

Automatic detection of all affected emails
Detailed report with migration date identified
Preview sample emails before and after fix
No credit card required for the scan
Start my free scan

If a fix is needed, Redate.io charges only EUR 0.004 per corrected email. Only corrected emails are billed.

Minimum EUR 29 per mailbox. One-time payment, no subscription.

Every fix includes:

Free scan and detailed report
Automatic date restoration
Integrity verification on every email
Originals kept in a visible folder for 30 days
Email support

A compliant invoice is generated automatically. Billing details are entered at the time of payment.

Frequently asked questions about email date fixes

If hundreds or thousands of your emails suddenly display the same received date, your mailbox was almost certainly migrated to a new email system. Your IT department or hosting provider may have moved your emails to Google Workspace, Microsoft 365, or another server without informing you. Migration tools modify the date headers, causing email clients (Outlook, Apple Mail, Thunderbird) to display the migration date instead of the original date. This is not an Outlook bug, not a corrupted file, and not a display issue - the dates in the email headers have actually been changed. Rebuilding the Outlook index or running SCANPST will not fix it. Redate.io restores the original dates automatically.

IMAP migration tools (BitTitan, CloudM, imapsync, GSMMO) add a 'Received' header with the migration timestamp. Email clients like Outlook use this header to display dates, causing every email to show the migration date instead of the original send date.

Yes. Redate.io fixes email dates even months or years after the migration. The original date is preserved in the email's 'Date' header and can be restored by removing the migration headers and re-inserting the email with the correct INTERNALDATE.

Zero data loss is guaranteed. Redate verifies every fixed email against the original before completing the process. Original emails are kept in a visible folder for 30 days, allowing full rollback at any time.

Redate processes 500-1,000 emails per minute. A mailbox with 10,000 emails typically takes 10-20 minutes. The initial free scan takes just a few minutes depending on mailbox size.

Outlook displays the date from the most recent 'Received' header, not the original 'Date' header. When a migration tool adds its own 'Received' header, Outlook uses that date. Redate removes these migration headers to restore the correct date.

The IMAP protocol requires a 'Received' header on insertion. Migration tools like BitTitan MigrationWiz, CloudM, and imapsync add this header with the migration timestamp. Email clients then display this timestamp instead of the original date.

Redate.io charges 0.004 EUR per corrected email, with a minimum of 29 EUR per mailbox. The scan is completely free and requires no credit card. Payment is only requested after reviewing the results and approving the fix.

For Google Workspace and Microsoft 365, admin access is recommended to fix multiple mailboxes efficiently. For individual mailboxes, direct IMAP access with regular email credentials works fine.

Original emails are moved to a visible folder called 'Redate.io - Originals' in your mailbox. They are never deleted. You have 30 days to verify the results and can restore originals at any time.

Some emails may lack the original 'Date' header. These are automatically skipped and reported. You only pay for emails that are actually fixed. If no emails can be fixed, Redate offers a full refund.

Redate.io works with any email server that supports IMAP, including GoDaddy, Rackspace, IONOS, Zoho, Yahoo, FastMail, Zimbra, cPanel hosting, Dovecot, and many more. If you can connect via IMAP, Redate.io can fix your dates.

You need your IMAP server address (e.g. imap.yourdomain.com), port number (usually 993), your email address, and your password. If you have two-factor authentication enabled, you may need to create an app-specific password in your provider's security settings.

Your credentials are encrypted with AES-256-GCM and used only during the scan and fix process. They are never stored in plain text and can be deleted from your account at any time.

Step-by-step fix guides for your migration tool

Detailed guides for fixing email dates after migration, organized by tool and destination platform.

Free Scan (2 min)

See exactly how many emails need fixing before you pay.