Still celebrating National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17


Exchange 2013 Callender invite Issue ( You cannot forward an external meeting request in an Exchange Server 2013 environment )

Posted on 2014-08-01
Medium Priority
Last Modified: 2014-08-23
HI Team

we are facing problem with Microsoft Exchange 2013 , problem is if we try to send calender invite to any one outside our network it goes as an email and not as an Calender Invite , we searched online and found out that this is a known issue Microsoft has even released updates for the same after checking out we found out that updates have already been applied and infect we are using a higher version then that was recommended   .

below is the link referred -

they recommend using Cumulative update 3 for Exchange and we are already using  - Servicepack1 Built 847.32.

We can still upgrade to Cumulative update 5 but it will not fix our problem as this issue must have been fixed in previous 2 Roll-ups , we are looking forward for your suggestions.

Question by:PacificAli
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 5
  • 5
LVL 37

Expert Comment

by:Jian An Lim
ID: 40238293
i can't find the kb you mention.
the kb 2902929 You cannot forward an external meeting request in an Exchange Server 2013 environment has nothing to do with your symptom.

do you have the message header of the email (that suppose to be calendar invite?)

Author Comment

ID: 40248201
Hi limjianan

sorry for late reply i was so busy with other issue did not get time to update this ticket.

as far as email haader is concerned please see below.


Received: from ( by ( with Microsoft SMTP
 Server (TLS) id 15.0.1005.10 via Mailbox Transport; Fri, 8 Aug 2014 08:57:55
Received: from ( by ( with Microsoft SMTP
 Server (TLS) id 15.0.995.14; Fri, 8 Aug 2014 08:57:55 +0000
Received: from (2a01:111:f400:7e04::142) by (2a01:111:e400:9800::44) with Microsoft
 SMTP Server (TLS) id 15.0.1005.10 via Frontend Transport; Fri, 8 Aug 2014
 08:57:55 +0000
Received: from ( by ( with Microsoft SMTP
 Server (TLS) id 15.0.990.10 via Frontend Transport; Fri, 8 Aug 2014 08:57:54
DKIM-Signature: v=1; a=rsa-sha1; c=relaxed/relaxed; s=mandrill;;
DomainKey-Signature: a=rsa-sha1; c=nofws; q=dns; s=mandrill;;
Received: from ( by id hsi8h41jvjgc for <>; Fri, 8 Aug 2014 08:57:53 +0000 (envelope-from <>)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;;; q=dns/txt; s=mandrill; t=1407488273; h=From :
 Subject : To : Message-Id : Date : MIME-Version : Content-Type : From :
 Subject : Date : X-Mandrill-User : List-Unsubscribe;
From: Ali <>
Subject: test6
Return-Path: <>
X-Originating-Ip: []
To: vibhu vibhu <>
Message-ID: <603ce44c84dd438883ed540f91970f70@ERSGExchange.ersgnetwork.loc>
Received: from [] by id 21cc5cd76fb54a658ba7e662f8d54276; Fri, 08 Aug 2014 08:57:53 +0000
X-Report-Abuse: Please forward a copy of this message, including all headers, to
X-Report-Abuse: You can also report abuse here:
X-Mandrill-User: md_30107196
Date: Fri, 8 Aug 2014 08:57:53 +0000
MIME-Version: 1.0
Content-Type: multipart/alternative; boundary="_av-vKdTCn-wpG9JLWHB5rJXeQ"
X-EOPAttributedMessage: 0
X-MS-Exchange-Organization-MessageDirectionality: Incoming
X-Forefront-Antispam-Report: CIP:;CTRY:US;IPV:NLI;IPV:NLI;EFV:NLI;SFV:NSPM;SFS:(6009001)(438002)(189002)(199002)(31966008)(83072002)(74502001)(564344004)(16796002)(956001)(946001)(87836001)(573454002)(81542001)(20776003)(106866001)(46102001)(74482001)(16236675004)(79102001)(74662001)(64706001)(99396002)(85852003)(95666004)(15395725005)(104766002)(92566001)(85306004)(107886001)(71186001)(4396001)(77096002)(50986999)(19580395003)(18206015026)(76482001)(83322001)(102836001)(229853001)(15202345003)(44976005)(54356999)(84326002)(16799955002)(80022001)(110136001)(77982001)(15975445006)(66066001)(110476001)(106466001)(81342001)(6806004)(19627405001)(21056001)(33646002)(24736002)(217283001)(108616003)(18926415006)(19627315001)(19607625011);DIR:INB;SFP:;SCL:1;SRVR:DB4PR05MB560;;FPR:;MLV:sfv;;MX:1;A:1;LANG:;
X-MS-Exchange-Organization-Network-Message-Id: a410a1eb-6f5b-41e1-e5b3-08d180fdfa53
X-Microsoft-Antispam: BCL:5;PCL:0;RULEID:(71001)
X-MS-Exchange-Organization-AVStamp-Service: 1.0
Received-SPF: Pass ( domain of
 designates as permitted sender); client-ip=;;
Authentication-Results: spf=pass (sender IP is;
X-MS-Exchange-Organization-SCL: 1
X-MS-Exchange-Organization-AuthAs: Anonymous

Please check attached Email if required its the same one for which we have copied header for.
LVL 37

Accepted Solution

Jian An Lim earned 2000 total points
ID: 40259936
sorry for the late reply

i think we need to do a pipeline tracing

this will give you some idea, is this change on submit (i.e. outlook decides) or through hub transport (i.e. exchange decide)
Office 365 Training for Admins - 7 Day Trial

Learn how to provision tenants, synchronize on-premise Active Directory, implement Single Sign-On, customize Office deployment, and protect your organization with eDiscovery and DLP policies.  Only from Platform Scholar.


Author Comment

ID: 40259978
Thanks for your reply we will do the pipeline tracing and let you know this is through hub transport.

LVL 37

Expert Comment

by:Jian An Lim
ID: 40260273
remember also do one internal as well for comparison

Author Comment

ID: 40260279
Hi limjianan

We have traced our problem is from our email relay service they have conformed that this is a known problem from their end so we can close this case now, thanks for your time .

LVL 37

Expert Comment

by:Jian An Lim
ID: 40260446
Well done :)
hopefully the pipeline tracing have pin pointed the issues

Author Comment

ID: 40264551
I've requested that this question be deleted for the following reason:

Did Not find a solution hear solved us on our own
LVL 37

Expert Comment

by:Jian An Lim
ID: 40264552
I hope at least you can accept the answer given that this at least prove that it is not exchange 2013 causing the trouble and pipeline tracing confirmed the email did not change before leaving exchange 2013 environment.

Author Closing Comment

ID: 40280242
Thanks for your Help


Featured Post

Efficient way to get backups off site to Azure

This user guide provides instructions on how to deploy and configure both a StoneFly Scale Out NAS Enterprise Cloud Drive virtual machine and Veeam Cloud Connect in the Microsoft Azure Cloud.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Unified and professional email signatures help maintain a consistent company brand image to the outside world. This article shows how to create an email signature in Exchange Server 2010 using a transport rule and how to overcome native limitations …
Sometimes clients can lose connectivity with the Lotus Notes Domino Server, but there's not always an obvious answer as to why it happens.   Read this article to follow one of the first experiences I had with Lotus Notes on a client's machine, my…
The video tutorial explains the basics of the Exchange server Database Availability groups. The components of this video include: 1. Automatic Failover 2. Failover Clustering 3. Active Manager
There are cases when e.g. an IT administrator wants to have full access and view into selected mailboxes on Exchange server, directly from his own email account in Outlook or Outlook Web Access. This proves useful when for example administrator want…
Suggested Courses

715 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question