Microsoft 365 - Migrating Email, Contacts, and Calendars

Overview

In order to move contacts and calendars from your standard webmail account into a Microsoft 365 account, you will need to first export from webmail, then import to Microsoft 365. This article covers both steps.

• Exporting Roundcube
• Importing to Microsoft 365

Exporting from Roundcube

1. Log in to the Roundcube webmail client.
2. Select the email you would like to export.
3. Click the More option, then choose Download .eml to begin the export.
   
4. Please just repeat as needed until all desired email messages have been exported.

Converting Exported Emails into PST

Though Roundcube saves exports as a .eml, this can be converted into .pst format using a free third-party tool, EML to PST Converter. The software maintains the EML message formatting and preserves the attributes associated with the EML message. Once an email is saved in PST format, it can be imported into Microsoft 365.

Contacts

Contacts from Roundcube address books are exported in the vCard format only. Microsoft 365 does not support the import of .vcf files. The .vcf file would need to be imported to Windows and then exported to a .csv file. This can be a tedious process for many contacts, as this must be done individually for each contact.

Calendars

1. Log in to the Roundcube webmail client and select Calendar.
2. Select Export, then “Export” on the popup. This will export your calendar to a .ics file.

Importing to Microsoft 365

RoundCube emails can be imported to Microsoft 365; however, doing so may require third-party tools.

1. Open Microsoft Outlook.
2. Once in Outlook, click File, then Open & Export > Import/Export.
   
3. Select Import from another program or file, then click the Next button.
   
4. Click Browse to open your converted Roundcube mailbox in .pst format, then click Next.
   
5. You can choose where you are importing content, then click Finish.
   

Contacts

For a detailed walkthrough on how to import Contacts to Outlook, we highly recommend checking this Microsoft Support Article to learn more.

Calendars

1. Log in to your Outlook, click File, navigate through Open & Export, and select Import/Export.
2. On the Import/Export Wizard Box, select Import an iCalendar (.ics) or vCalendar file (.vcs), and then click Next.
3. Browse the calendar file from your PC and click OK.
   
4. Click Open as New. The items will automatically be imported into your calendar.