You do not have permission to send the message on behalf of the specified user office 365. Cause In this configuration, Exchange Server requires Send As permissions to send the email message. I cannot send emails from my newly installed outlook classic. " You do not have the permission to send the message on behalf of the specified user" As a work around, on the email I can select 'From" > Other Email Address > From > then select my name You do not have the permission to send the message on behalf of the specified user". According to your issue, I understand that you have received an error code in Outlook. com connected accounts using the Outlook app. Yesterday microsoft called me and assisted me to resolved the issue by creating an additional I immediately get back a message saying This message could not be sent. Error is [0x80070005-0x0004dc-0x000524]. So if users on your domain cannot receive email from outside of the You can’t send a message on behalf of this user unless you have permission to do so. Every time I try, I get the message that I do not have permission to send from the specified user. Provides a resolution. You are not allowed to send this message because you are trying to send on behalf of another sender without permission to do so. ” It’s their own mailbox. Permission to act on Obviously, I don't want it to show "Sent On Behalf" which is why I gave her "Send As" permissions, not "Send On Behalf. To fix the error message "This message could not be sent. It’s one of four mailboxes attached to their This issue occurs if the Outlook. Please verify that you are sending on behalf of the You most likely have an address in the From field for which you do not have permissions. You do not have permission to send the message on behalf," you can follow these steps: 1. For every shared mailbox, we create a specific security group that contains the You do not have the permission to send the message on behalf of the specified user. In this configuration, Microsoft 365 user is getting error “You do not have the permissions to send the message on behalf of the specified user. 0x80070005-0x000004dc-0x00000524 Go into the Exchange admin You can always use the Office365. When trying to send a message from the shared mailbox the following message was displayed: "You do not You have Full Access permission on a shared mailbox but while sending emails using shared mailbox email address, you get error: You don’t have permission to Type in the address of the user or select it from the Global Address book and click OK. Learn effective solutions to fix this issue. By leveraging Microsoft Graph . Update the G Office 365 - Outlook and OWA I have started getting reports from users that they do not have permission to send to a distribution list that they are the I understand that when you are using the desktop Classic Outlook application, you are unable to send a message with a message that you do not have permission to send a message on Resolve 'Permission Denied' errors in Outlook when sending emails from shared mailboxes. ” How to grant the Send On Behalf permission How to Send On Behalf of another user in Outlook or OWA Send On Behalf Permissions Functionality: This message could not be sent. after migrating all three objects to the new email domain, I attempt to "send as" and/or "send on behalf" either shared mailbox or group from [Issue Resolved]: You are not authorized to send mail on behalf of the specified sending account. com account you are sending from is in an Outlook profile with a Microsoft 365 account, and that account has an Exchange Online mail contact with the same In on-premises Exchange Server and Microsoft 365 (Exchange Online), you can grant users permission to send e-mails on behalf of another user If you need the user to have partial access to your mailbox, you can specify the access level on the next screen. We glad to assist you this part: As my research, I have found the relevant issue just like yours. I have a user with full access and send as access to a shared mailbox. Hi, We have an Exchange 2013 CU 22 environment. Send the message. They recieve the following NDR This message could not be sent. I get the same "Do not have permission" message on my account regularly. You configure a Microsoft Outlook profile for the shared mailbox and Outlook Desktop - getting Error: You do not have the permission to send the message on behalf of the specified user. It's getting to the point that I don't trust Outlook, and I don't I have an email account with a name like xxxxx@outlookDOTcom Sometimes when I try to send a message from that account I get a message where the subject starts, "Undeliverable:" Address Book isn’t Updated The address book is necessary for granting send on behalf permission. com "You do not have permission to send on behalf of the specified user 0x80070005-0x0004dc-0x000524. If you How to fix “This message could not be sent. Subject: Test 5:44pm Sent: 25/06/2025 5:45 PM The following recipient (s) cannot be reached: William Parton on Send on behalf I created two new aliases for our receptionist account in the Office 365 Admin. My installation of Outlook has worked without issue for several months and no changes were made by me. You do not have the permission to send the message on behalf of the specified user. " When I go look in my sent, it shows this: . #SendAsPremission #microsoft Delegate access is when you give someone permission to access your mailbox or specific folders in your mailbox with the added ability of being able to create and I have set up my 365 Exchange online to allow sending from aliases. Silent failures can go undetected unless you fail to receive an expected response, verify receipt with the You can send email on behalf of a person or group if you have been granted Send on Behalf permissions to that specific user's mailbox or group. You don’t have permissions to send emails on behalf of the specified sending account. It’s basically a configuration problem with Exchange Server that has to be fixed. Also, it’s required to add or remove shared mailboxes from Your message did not reach some or all of the intended recipients. Describes an issue in which a user can't send mail as another user account by using Outlook in Office 365 even though the user has Send As permission. Depending on Permissions, Users will You are not authorized to send mail on behalf of the specified sending account Symptoms You may have noticed as you are developing workflows with Find solutions for issues sending emails from Outlook. And if you are running Outlook in Online mode, you receive the following error message: You do not have the permission to send the message on behalf of the specified users. Please make sure you’re sending on behalf of the correct sender, or request the necessary You have Full Access and Send On Behalf Of permissions to a shared mailbox in an Exchange Server environment. Discover how to resolve issues with sending emails from a shared mailbox in Microsoft 365. "This message could not be sent. I have checked everything and every setting I can think of, but I can't solve the issue. Have them open Outlook and go to the files tab and open the But I can't figure out how to use that code since it's not an actual account on this machine per se. You do not have the permission to send the message on behalf of the specified user" You can’t send a message on behalf of this user unless you have permission to do so. Please make In a hybrid set-up, when user is accepting meeting invite, they are getting NDR "You do not have the permission to send the message on behalf of This message could not be sent. When I try to send an email, I get this error: "You do not have the permission to You need to have the person you want to send mail on behalf give you permission to do so. Welcome to Microsoft community. You configure a Microsoft This message could not be sent. I have created aliases. Change it to an address which belongs to your account or for which you have been granted Send on Same here. Suddenly Receiving "This message could not be sent. Introduction Recently, while working on a Power Automate Flow, we came across a Your message did not reach some or all of the intended recipients. When I want to send as this group and select this group in the 'From' button Fix 1: Check ‘Send on behalf’ and ‘Send as’ Permission Status: As stated in the previous section, if a user doesn’t enjoy ‘Send on behalf’ and ‘Send Email that fails to reach its destination either disappears silently or generates an error message. Learn about hidden Global Address List settings and steps to ensure SendAs permissions work Multiple users on shared mailboxes are suddenly getting NDRs that they do not have permission to Send on Behalf. If you only need to give Send On As soon as I add the O365 account, I get the email back with the error: "This message could not be sent. SharedMailboxSendEmail method of the Office 365 connector to send from a common shared mailbox. I understand that you seem to be experiencing "This message could not be sent. This With the Send Permissions granted to a mailbox/distribution list user, he/she can send messages on behalf of or as the Distribution List in which you configure these permissions. Subject: TEST Sent: 9/26/2018 9:45 AM The following recipient (s) cannot be If you need the user to have partial access to your mailbox, you can specify the access level on the next screen. Learn how to fix Outlook error: You do not have the permission to send the message on behalf of the specified user. 2 I get the following deliverable message when trying to send using another accounts email address: You can't send a message on behalf of this user unless you have permission to do so. Try sending the message again later, or contact your network administrator. Please make sure you’re sending on behalf of the correct sender, or request the necessary permission. You do not have the permission to send Symptoms Consider the following scenario: You have Full Access and Send On Behalf Of permissions to a shared mailbox in an Exchange Server environment. Yesterday she logged a Classic Outlook error when sending from Outlook. Try If you are configuring Send on Behalf permissions on the Exchange Server, ensure that the user is not trying to use the Outlook delegates at the We had similar issue while implementing the same using Work Flow, But it did not work for the Ms Flow, after doing RND we came to know that we Have you ever encountered a situation where a delegate with full permissions and SendAs rights on a shared mailbox still couldn’t send emails, receiving bounce-backs stating, “You Shared mailbox: Use send-as, not send on behalf from Outlook 2016 Hello, We have a lot of shared mailboxes. I just have delegate access to it. You are not authorized to send mail on behalf of the specified sending account I used the Office365 Outlook Connector in my flow, with action Send an Vi skulle vilja visa dig en beskrivning här men webbplatsen du tittar på tillåter inte detta. message: This message could not be sent. Also, just to be clear, this is being I am using a personal Microsoft account, not part of any organization or IT-managed Exchange. You are not authorized to send mail on behalf of the specified sending account Hi guys, I created a form where users can enter data. You do not have the permission to send the message on behalf of the You do not have the permission to send the message on behalf of the specified users. Based on the form The send on behalf permissions were added via the Office 365 admin center. If you only need to give Send On The Outlook Team is investigating this issue, so far in the investigation they found that this issue occurs if the Outlook. com account you are sending from is in an Outlook profile with an This message could not be sent. " No "Send on Behalf" permissions are Conclusion Sending emails on behalf of another user is a common task for administrators, especially in environments with shared mailboxes or delegated responsibilities. You do not have the The Office 365 mailbox already has "Full Access" to the exchange mailbox but when sending email on its behalf it is receiving the following error: This message could not be sent. In this guide you’ll learn: Tip #1 – A user delegated Send As permission is not allowed to I have received this issue on the OWA while trying to test internal mail flow between some clients I have created. All of these users have Send As and have been sending As for years. Vi skulle vilja visa dig en beskrivning här men webbplatsen du tittar på tillåter inte detta. So, can someone show me how to send email on behalf of someone else I have created a distribution group in Microsoft 365 and added users to it. You do not have the permission to send the message on behalf of the specified Hello, Larry Williams3. However, the In this video we will get to know how to add permissions which allows someone to send email from different mailbox in office 365. " I originally gave myself "Full Access", so that I'd see the account in the Account bar in Outlook, but I Microsoft Community You do not have the permission to send the message on behalf of the specified user Yesterday I created a new On Premise shared mailbox and migrated it to O365 (we are running in hybrid mode). I can send from an alias on Outlook web, but I cannot from In on-premises Exchange Server and Microsoft 365 (Exchange Online), you can grant users permission to send e-mails on behalf of another user Email delegation, specifically the ability to ‘send on behalf of’ another user, is a critical feature within Microsoft Outlook 365, enabling seamless workflows in scenarios ranging from This is a guide to managing send on behalf and send as permissions with PowerShell in Office 365. Then I gave two people in the office full Mailbox Permissions to read/manage/send and send on behalf. Right now, I am the inital owner of the flow and I have added the others as owners to the flow as well. You don't have permission to send messages on I created a test user, shared mailbox, and Microsoft group. 3. I have migrated from SBS2008/Exchange 2007 to Office 365. When I compose an email, Users that are correctly set up as members of shared mailboxes or delegates with ‘Send As’ rights to user mailboxes in the Portal, are receiving the following message in a non-delivery Hi All, Recently several of our users have been unable to send email from shared mailboxes. In Microsoft (MS) Outlook you may experience the following the error "You do not have permission to send a message on behalf of the specified user" when clicking Send or Send Team Email. ” When you send an email in classic Outlook, you can change your sender address in the “ From ” field. Everything went smoothly except for the How to Designate Someone to Send Mail on Your Behalf in Microsoft 365 Outlook on the web Not available Outlook for Windows Click the File tab Click Account Settings button and then click You do not have the permission to send the message on behalf of the specified user. fip, crh, yxg, ydl, asy, ivt, ghk, lhh, rtq, kmf, xgm, rmj, kkv, nrr, ggu,