Event ID - 1102

Event Id1102
DescriptionDuring intersite replication, the directory replication agent (DRA) closed the connection to the mail service in response to error 80450102. Will attempt to connect again later.
Event InformationAccording to Microsoft:
This behavior may occur if the antivirus program that is installed on your computer is configured to block all attachments that use the .dat extension.
This behavior has been reported to occur with Trend Micros ScanMail for Microsoft Exchange product.
This issue can occur because Exchange Server 5.5 Service Pack 3 makes virus-scanning APIs available to speed up attachment scanning. Because of this, certain replication problems can occur if the replication messages contain attachments.
To resolve this issue, configure your antivirus program to turn off (disable) blocking for .dat files. For more information about how to turn off the blocking of specific file types in your antivirus program, see the program documentation or contact the software manufacturer.
To resolve this issue, temporarily uninstall the anti-virus application programming interface (API) scanner and apply the information store fix, build 5.5.2652.42.
Reference LinksDirectory Replication Is Unsuccessful and Event ID 1102 Is Generated

Exchange Replication Does Not Work

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