This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(12.8, 97%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EEB%3C/text%3E%3C/svg%3E)
Hello Guys,
On an Exchange 2019 with CU 13, out of office messages work internally but not externally (outside the organisation).
What could be the reason for this?
This comment has been deleted due to a violation of our Code of Conduct. The comment was manually reported or identified through automated detection before action was taken. Please refer to our Code of Conduct for more information.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(128, 8%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
Hi @Early Bird Would you like to share your current progress? Have you solved the problem? If the answer was helpful, please "Accept Answer" to close the case.
Please check if this helps you.
https://learn.microsoft.com/en-us/answers/questions/1274688/ms-exchange-2019-out-of-office-reply-doesnt-work-f
Regards
Shaofan
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.
thank you for the quick reply.
In my case, the RemoteDomain is already set to true for AutoReplyEnabled and AutoForwardEnabled.
PS] C:\Users\Administrator.MIROW\Desktop>Get-RemoteDomain | fl DomainName,AllowedOOFType,AutoReplyEnabled,AutoForwardEnabled
DomainName : *
AllowedOOFType : External
AutoReplyEnabled : True
AutoForwardEnabled : True
You could check from the following:
Also, are all your external contacts unable to receive OOF?
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(137.6, 98%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAS%3C/text%3E%3C/svg%3E)
Check this official documentation: Understand and troubleshoot Out of Office (OOF) replies - Exchange | Microsoft Learn
This document mentions that if automatic replies are enabled, only one reply is sent to each sender, even if a recipient receives multiple messages from a sender.
If you want to send a response to the sender every time instead of only one time, you can apply the "have server reply using a specific message" mailbox server-side rule instead of using the OOF rule. This alternative rule sends a response every time that a message is received.
I have already tested the OOF with different mail addresses and no OOF message is generated.
I have also disabled and re-enabled the OOF for the mailbox.
Did you check what I mentioned above, any clues?
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(284.8, 17%, 37%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EYS%3C/text%3E%3C/svg%3E)
Hi @Early Bird ,
I have also disabled and re-enabled the OOF for the mailbox.
Does this issue only affect this particular mailbox? If this is the case, please run the command below to check the OOF message settings for this mailbox:
Get-Mailbox <UserIdentity> | fl ExternalOofOptions
If the returned output is not "External", run the command below to change it, then disable and re-enable OOF for the mailbox to check the result.
Set-Mailbox <UserIdentity> -ExternalOofOptions External
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.
Hello Guys,
sorry for the delay.
The problem exists with all mailboxes.