| Event Id | 2449 |
| Source | MSExchangeMSMI |
| Description | The object is not valid. Microsoft Exchange Administrator ID no: c1035b3c. |
| Event Information | According to Microsoft: Microsoft has confirmed this to be a problem with Microsoft Exchange Server version 4.0. When the Microsoft Mail user sends a mail message to an invalid e-mail address, and the message passes through the Microsoft Mail postoffice, Microsoft Mail Connector and Internet Mail Connector, this Microsoft Mail user receives an NDR. Even though the NDR is returned to the sender on Microsoft Mail postoffice from Internet Mail Connector, the NDR still stays in the Microsoft Mail Connectors queue. |
| Reference Links | XFOR: NDRs Stay in MS Mail Connector Queue |
Catch threats immediately
We work side-by-side with you to rapidly detect cyberthreats
and thwart attacks before they cause damage.