How to Fix ‘Access Denied’ Issue when Sending Email in Outlook?

Ritu Roy | fix How to's Outlook Software Technology | 5 minutes read | Modified on: 20-02-2024
how to fix access denied issue when sending email in outlook

Summary: If you send a new email from a shared mailbox in Outlook, you can get the Permission Denied error. Lack of authorization and other factors covered in this article are typically the cause of this. You can try the solutions covered in this post to fix the ‘Permission Denied’ issue. A program that convert OST files to PST that can retrieve and extract mail items from orphaned or unreadable OST files is also available.

Microsoft Outlook is a well-liked and powerful calendaring and email program for businesses. Just like any other program, Outlook can have problems and mistakes. The “Permission Denied” problem, which shows up while attempting to send an email in Outlook, is one frequent issue that users encounter. This mistake may cause email correspondence and workflow to be disrupted, resulting in lost productivity and downtime.

We will examine the reasons behind the “You do not have permission to send the message” error in this post and offer step-by-step guidance on how to fix it.

Causes of the Permission Denied Error in Outlook Email Sending

The “Permission Denied” issue can arise for several reasons, including:

  • Insufficient Permissions: It is possible that the person attempting to send the email does not have Send As or Send on Behalf permissions, or does not have the required permissions to send the email from the mailbox. It should be noted that sending messages from a shared mailbox with Full Access permissions is not possible. Only managing and reading the mailbox is permitted.
  • Permission Delay: It could take up to 60 minutes for the modifications to take effect, even if the user has been granted the Send As or Send on Behalf permissions. Messages could only be sent once the modifications were made.

Furthermore, the error might also happen as a result of:

  • Inaccurate or incorrect email configuration. 
  • Momentary mail server problems.
  • Outlook data file corruption or destruction (OST).
  • Corrupt Outlook profile

Methods to Resolve the ‘Permission Denied’ Error in Outlook

Try using Outlook as an administrator first. If it doesn’t work, try the troubleshooting and remedies listed below to fix the “Permission Denied” error.

1. Assign permissions for Send As or Send on Behalf.

Make that your user account has the required Send As or Send on Behalf permissions before sending emails on behalf of a shared mailbox. You must contact your administrator about this. If you lack the necessary authorization, request that they provide you with these rights.

The following are the steps to add Send As permissions:  

  • Navigate to Recipients after logging into the Exchange Admin Center (EAC).  
  • To see the mailboxes for which you require authorization, choose the Mailboxes or Shared tab.  
  • Next, click Edit after selecting the User or Shared Mailbox.  
  • Next, select Mailbox delegation and press the Plus (+) symbol.  
  • Find the user who requires authorization, pick them, and proceed with the selection.  
  • To make the changes take effect, select Send As for the permission type and click the Save button.  

Likewise, provide the Send on Behalf authorizations. You have up to 60 minutes after the permissions are assigned to wait for the changes and permissions to take effect.

2. Verify the Permissions for Outlook Web App (OWA)  

Even with the right permissions, sending emails from the Outlook client on Windows might occasionally fail and result in permission-denied errors for users. In these situations, you can use Outlook on the Web to check whether the server is online or available (OWA). You can wait for the server to go online if you’re having trouble logging into Outlook or OWA. It can be unavailable due to routine maintenance or a recurring restart cycle.

3. Make Use of GAL, the Global Address List.  

To avoid receiving the Permission Denied error while sending emails from a shared mailbox, it is crucial to choose the shared mailbox from the Global Address List (GAL) rather than entering the email address directly in the From field. Here’s how to do it:

  • Choose New Email from Outlook. Select “From” from the email message window.  
  • Click on a different email address.
  • Next, select the from option from the Send From Other E-mail Address window.
  • To utilize the global address list (GAL), switch the address book.
  • If you were given Send As permissions, choose the user or mailbox.
  • Next, forward the email.

4. Verify Permissions for Outlook Data Files

Outlook problems and the permission denied error can result from missing read/write data file permissions. The permissions of the Outlook data (OST) file can be checked. The following are the steps to follow:  

  • Close the Outlook window.
  • Click OK or hit the Enter key after typing %localappdata/Microsoft/Outlook with Windows + R. This will cause the OST file to appear in the File Explorer window.  
  • To access the Properties of the OST file, right-click on it.
  • Verify that the “Read-only” checkbox is not selected.
  • Then, select Uncheck Encrypt content to safeguard data under the Advanced tab.
  • Select Apply > OK.

Launch Outlook, then attempt to send a fresh email.

5. Upgrade the Outlook application  

The Permission Denied error is one of the faults or problems that might arise from using outdated Outlook apps. As a result, it’s critical to verify and install any available updates for Outlook. The following are the steps to follow:  

  • Navigate to File > Office Account after opening Outlook.  
  • Select Update Now after clicking on Office Updates.
  • When updates become available, Outlook will notify you about them. Download and install the most recent Outlook updates.

If the Update Now option isn’t visible in Outlook, the administrator may have locked it. You can download and install Windows Updates in such a situation, as it also includes bug updates for Microsoft Office, including Outlook. These are the steps to follow:  

  • Navigate to Update & Security in Windows Settings, then select Windows Updates.  
  • After selecting Check for Updates, download and install the necessary updates.
  • Try sending the email after restarting the computer after the update.

6. Create a Fresh Outlook Account  

A corrupt Outlook profile can cause several problems with the program, including difficulties in sending and receiving new emails. You can make a new Outlook profile in such a situation. Here’s how to do it:  

  • Close the Outlook window.  
  • Click User Accounts > Mail in the Control Panel once it’s open.
  • Pick Show Profiles > Add after that.  
  • Click OK after naming your new profile.
  • To log in and create an email account under this new profile, proceed with the login step.
  • After setting up, open Outlook and set this profile as the default.
  • Try sending a message now to see whether the permission-denied problem has been fixed.


Outlook’s “Permission Denied” error notice appears when a user tries to send a message on behalf of a shared mailbox. The user can’t send any further emails because of the problem. The reasons behind the Permission Denied error in Outlook have been discussed above, along with potential fixes for efficiently troubleshooting and resolving it.

Use CubexSoft OST Converter to extract and restore your mail items from the inaccessible, orphaned, or inconsistent OST file to a new profile or OST file. Don’t forget to rebuild the Outlook data file (OST) when nothing else works.