Is it possible to import .eml files in to an Exchange Online account ?


  • We are looking to move to Exchange on-line over the coming months but we currently use Mimecast Email Archive to back up our email. We can download all our mail from the archive, the only problem is that they are in .eml format. My question is, can you import these files into the inbox so they can be archived on the Microsoft environment. I know that you can open the .eml in Outlook 2013 but we would want to import the mail so we can close the Mimecast account down.

    Any help would be appreciated



    Tuesday, October 15, 2013 1:15 PM

All replies

  • You can drag and drop .eml files into the Outlook folder structure, which will then be part of the user's mailbox.  Microsoft does not provide a tool for bulk .eml file import.  There may also be a 3rd party tool in this space, however I've not worked with Mimecast before.

    Mike Crowley | MVP
    My Blog -- Planet Technologies

    Monday, October 21, 2013 10:54 PM
  • Thanks Mike,

    I am currently working with Mimecast to find a solution so that we can keep our archive with them and continue with it using Office 365. Your solution of dragging file is one that I have been informed of before but we are looking at 3 years worth of email so it may be a bit of a mare to drag them all in.



    Tuesday, October 22, 2013 7:44 AM
  • I didn't really mean it as a suggestion, just pointing out that eml files are not a very good "archive" format. Maybe this code could help ya:

    Mike Crowley | MVP
    My Blog -- Planet Technologies

    • Proposed as answer by Mike Crowley Tuesday, October 22, 2013 12:17 PM
    Tuesday, October 22, 2013 12:16 PM
  • EML to PST Converter is an efficient and good software for batch EML file conversion simultaneously to save your valuable time. This is a very fast and swift application which gives safest and most efficient option to import EML mailbox data into a new PST file that you can save at any desired location. It allows you export all email data with attachments from EML to PST file format. It preserves the original file structure and all Metadata during the whole EML to PST Converter. Visit here for more details:-
    Monday, July 16, 2018 11:40 AM
  • You want to migrate data from Mimecast to outlook 2013 in your system. And you have .eml files of Mimecast. So, you have need a tool that can transfer all old emails from Mimecast files into Outlook 2013 pst.

    The same issue of conversion, my friend has faced. In this condition, he has used converter software from this site-
    Friday, August 3, 2018 4:35 AM
  • This conversion is possible with Softaken EML To PST Converter tool. This software will help you to migrate mailboxes database from window live mail EML to outlook PST file format. This is the best tool to migrates all mails file without any mistake & 100% accurate.

    You can download free tool from here -

    Wednesday, August 29, 2018 5:17 AM
  • EML Converter provides the best solution to convert EML file to PST other file formats without corrupting any of data. The tool export EML emails to along with attachments. It allows bulk conversion to save the time and energy. It gives multiple file naming options to save PST file as per the requirement. It has the search option to search particular EML files easily. The tool compatible with all the versions of Windows OS. With this converter, you can store the resultant file to the desired path. Visit here for info:-

    For the Mac OS there is another option you can try this EML to PST Converter for Mac:-

    Thursday, August 30, 2018 10:44 AM
  • There are lots of EML to Office 365 migration tool available on the web but I want to explain my experience with MailsDaddy EML to Office 365 migration tool. This is the best GUI based application allows you to import EML into Office 365 from WLM, Apple Mail, Entourage, Thunderbird & etc. The tool supports all Window versions whether old or new and it works independently. Using this solution, you can quickly transfer all EML files to Office 365 in few clicks.

    • Edited by Somit_svk Thursday, October 4, 2018 7:59 AM
    Thursday, October 4, 2018 7:57 AM
  • Now you can easily import .eml files into an Exchange online account with the help of BitRecover product. The tool has a separate option to import EML files to Exchange Online account directly by filling the account credentials in the software interface.

    Follow these simple steps

    1. Download BitRecover EML Converter Wizard.
    2. Load EML files in the software panel.
    3. Select Exchange Server as saving format.
    4. Fill Exchange Online credentials and press Convert button.
    5. After completing the conversion, Login to your Online Exchange account.

    For complete details visit –

    Friday, October 19, 2018 7:31 AM