When your server is connecting to the remote MTA, it's claiming to be mprsdc01.mprs.local. RR must have a check in place to make sure the sending domain exists. Of course their machine can't resolve ...

Microsoft has fixed a known issue affecting Outlook for Microsoft 365 users that caused problems sending emails for those with too many nested folders. Microsoft says users trying to send emails from ...

If the Outlook error message The email system had a problem processing this message, It won’t try to deliver this message again keeps troubling you, this post may ...

Forbes contributors publish independent expert analyses and insights. I write about transformative work practices for a changing world. We spend countless hours sending emails, crafting responses, and ...

For a while now, some Microsoft 365 users have been running into problems when sending emails via Outlook. More specifically, users who have more than 500 folders ...

Microsoft has fixed a known issue causing Outlook Desktop clients to crash when sending emails from Outlook.com accounts. These problems were first reported on Microsoft's community website and other ...

Outlook may resend old emails primarily due to synchronization glitches between local devices and email servers. These issues often stem from corrupted local cache files (OST/PST) where Outlook stores ...