Statistics and debugging options are more limited on the sender to Microsoft
side, but if you have an amenable recipient or an amenable admin on the
recipient's side, requesting them to initiate a message trace should yield
specifics on message deliverability.
via mailop
Sent: Thursday, May 9, 2024 13:10
To: mailop@mailop.org
Subject: [mailop] "The email didn't arrive" to Office 365
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On 5/9/2024 3:51 PM, Gellner, Oliver via mailop wrote:
On 09.05.2024 at 20:21 Jarland Donnell via mailop wrote:
Quick question for you experts. What do you find to be the most common root
cause for reports of emails not being received by Office 365 domains, when you
can confirm conclusively
> On 09.05.2024 at 20:21 Jarland Donnell via mailop wrote:
>
> Quick question for you experts. What do you find to be the most common root
> cause for reports of emails not being received by Office 365 domains, when
> you can confirm conclusively that Microsoft accepted the email? Obviously
>
Yes, Microsoft 365 has hosted quarantines. There are two types: user facing
where the user gets a digest every day and they can release messages from it
and an admin quarantine, where only the tenant admins have access to (usually
reserved for malware or other high-risk messages land).
> On
Hello,
(sent again to the list)
On Thu, 9 May 2024 at 20:09, Jarland Donnell via mailop
wrote:
>
> Hey friends,
>
> Quick question for you experts. What do you find to be the most common
> root cause for reports of emails not being received by Office 365
> domains, when you can confirm
Hey friends,
Quick question for you experts. What do you find to be the most common
root cause for reports of emails not being received by Office 365
domains, when you can confirm conclusively that Microsoft accepted the
email? Obviously spam folder delivery should rank high, but what else?
