Why can't I delete or mark emails read in Mimecast?

Document created by user.oxriBaJeN4 Employee on Sep 7, 2015Last modified by user.oxriBaJeN4 Employee on Dec 3, 2015
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This article outlines why email cannot be deleted or marked as read in Mimecast.


Applies to

  • End users of Mimecast applications


Why can't emails be deleted or marked as read is one of the most frequently asked questions we receive at Mimecast. Usually, these are received from users of Mimecast Mobile, but we also see users of Mimecast for Outlook and the Mimecast Personal Portal ask this question also.

Let's use Mimecast Mobile as our example to outline why this isn't a feature within Mimecast.


Mailbox storage management

As a view of your entire email archive, Mimecast will display all emails received for an end user, regardless of whether or not these have been deleted from your corporate environment. Microsoft Exchange is the most common mail server used by Mimecast customers; storage for email stored in Exchange is expensive, you've probably had your IT department say they're archiving much of your email. Some IT departments delete all email after 6 months. This is where Mimecast becomes really useful, even though your organisation doesn't have the email any longer you can still search for it using Mimecast applications, returning results in seconds. With all of your data safely stored in Mimecast your IT departments no longer need to worry about costly maintenance of on-site hardware or increasing storage costs.



Alternatively if you've ever heard the IT department say "email is down!" then Mimecast Mobile can help you here too. Mimecast is still delivering all of your messages whether that's inbound (when receiving messages from other companies) or outbound (when you sending messages out to other companies) your email is still being delivered. When your Microsoft Exchange server comes back online again Mimecast delivers all of the messages to it allowing you to see it all in Outlook.



Legal obligations

Email won't be deleted from Mimecast as your administrators may have legal requirements to fulfil around the retention of these items. If an email is also accidentally deleted from your Outlook profile Mimecast allows you to recover this email back into Outlook. Marking an email as read would mean that Mimecast would need to update each email for each customer and send updates regarding email status back to the Microsoft Exchange server. This isn't currently possible, but as soon as it is we'll add this feature into our applications.

So the next time you open up Mimecast Mobile you're taking a look at every email you have in Mimecast. All of it can be searched quickly, even those lengthy word documents you received.

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