Meeting organizer receives multiple responses from an attendee

Symptoms

The organizer of a meeting receives multiple meeting responses from an attendee. An analysis of the IIS logs shows multiple MeetingResponse commands from the user's device. These commands resemble the following:
2015-11-18 13:48:57 10.0.1.161 POST /Microsoft-Server-ActiveSync/Proxy/default.eas User=jmartin@contoso.com
&DeviceId=VBHDCRCR131BJBUID1MNRQNNIG&DeviceType=iPhone&Cmd=MeetingResponse&Log=PrxFrom:10.0.1.161_V160_Ver1:160
_HH:eas.contoso.com_SmtpAdrs:jmartin%40contoso.com_Fet:6014_Pk:4016830080_DevOS:iOS+9.2+13C71_As:AllowedG
_Mbx:CLT-E16-MBX1.contoso.com_Throttle:0

Cause

The attendee responded to an instance of a recurring meeting using an iOS 9.x device. The device does not correctly parse the Exchange server response and will continue to send the meeting response.
Apply the iOS 9.3 update. Apple has documented the issue in the following article in the Apple Knowledge Base:

More Information



Third-party information disclaimer


You can use the following Log Parser Studio query to identify users who are affected by this issue:
/* Query to find MeetingResponse commands by user device */
SELECT COUNT(*) As Hits,
EXTRACT_VALUE(cs-uri-query,'DeviceType') AS DeviceType,
EXTRACT_VALUE(cs-uri-query,'DeviceId') AS DeviceId,
REPLACE_STR(TO_STRING(EXTRACT_PREFIX(EXTRACT_SUFFIX(cs-uri-query, 0, '_SmtpAdrs:'), 0, '_')), '%40', '@') As User,
EXTRACT_VALUE(cs-uri-query,'Cmd') AS Cmd
FROM '[LOGFILEPATH]'
WHERE cs-uri-stem LIKE '%Active%' AND Cmd LIKE '%MeetingResponse%'
GROUP BY DeviceType,DeviceId,Cmd,User
ORDER BY Hits DESC

Propriétés

ID d'article : 3108212 - Dernière mise à jour : 7 avr. 2016 - Révision : 1

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