https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXCMSG/7fd7ec40-deec-4c06-9493-1bc06b349682 Specifies the Message and Attachment Object Protocol, which handles Message and Attachment objects. https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXCMSG/7fd7ec40-deec-4c06-9493-1bc06b349682 <b>Protocol Revision:</b> 26.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMSG/[MS-OXCMSG].pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMSG/[MS-OXCMSG]-240416.docx">DOCX</a></li></ul> Tue, 16 Apr 2024 MS-OXCMSG-20240416 https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXCMSG/7fd7ec40-deec-4c06-9493-1bc06b349682 <b>Protocol Revision:</b> 25.3<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMSG/[MS-OXCMSG]-240220.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMSG/[MS-OXCMSG]-240220.docx">DOCX</a></li></ul> Tue, 20 Feb 2024 MS-OXCMSG-20240220 https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXCMSG/7fd7ec40-deec-4c06-9493-1bc06b349682 <b>Protocol Revision:</b> 25.2<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMSG/[MS-OXCMSG]-231113.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMSG/[MS-OXCMSG]-231113.docx">DOCX</a></li></ul> Mon, 13 Nov 2023 MS-OXCMSG-20231113 https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXCMSG/7fd7ec40-deec-4c06-9493-1bc06b349682 <b>Protocol Revision:</b> 25.1<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMSG/[MS-OXCMSG]-230815.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMSG/[MS-OXCMSG]-230815.docx">DOCX</a></li></ul> Tue, 15 Aug 2023 MS-OXCMSG-20230815 https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXCMSG/7fd7ec40-deec-4c06-9493-1bc06b349682 <b>Protocol Revision:</b> 25.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMSG/[MS-OXCMSG]-210817.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMSG/[MS-OXCMSG]-210817.docx">DOCX</a></li></ul> Tue, 17 Aug 2021 MS-OXCMSG-20210817 https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXCMSG/7fd7ec40-deec-4c06-9493-1bc06b349682 <b>Protocol Revision:</b> 24.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMSG/[MS-OXCMSG]-210422.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMSG/[MS-OXCMSG]-210422.docx">DOCX</a></li></ul> Thu, 22 Apr 2021 MS-OXCMSG-20210422 https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXCMSG/7fd7ec40-deec-4c06-9493-1bc06b349682 <b>Protocol Revision:</b> 23.1<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMSG/[MS-OXCMSG]-190618.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMSG/[MS-OXCMSG]-190618.docx">DOCX</a></li></ul> Tue, 18 Jun 2019 MS-OXCMSG-20190618 https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXCMSG/7fd7ec40-deec-4c06-9493-1bc06b349682 <b>Protocol Revision:</b> 23.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMSG/[MS-OXCMSG]-181001.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMSG/[MS-OXCMSG]-181001.docx">DOCX</a></li></ul> Mon, 01 Oct 2018 MS-OXCMSG-20181001 https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXCMSG/7fd7ec40-deec-4c06-9493-1bc06b349682 <b>Protocol Revision:</b> 22.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMSG/[MS-OXCMSG]-180724.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMSG/[MS-OXCMSG]-180724.docx">DOCX</a></li></ul> Tue, 24 Jul 2018 MS-OXCMSG-20180724 https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXCMSG/7fd7ec40-deec-4c06-9493-1bc06b349682 <b>Protocol Revision:</b> 21.1<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMSG/[MS-OXCMSG]-170919.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMSG/[MS-OXCMSG]-170919.docx">DOCX</a></li></ul> Tue, 19 Sep 2017 MS-OXCMSG-20170919 https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXCMSG/7fd7ec40-deec-4c06-9493-1bc06b349682 <b>Protocol Revision:</b> 21.1<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMSG/[MS-OXCMSG]-160914.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMSG/[MS-OXCMSG]-160914.docx">DOCX</a></li></ul> Wed, 14 Sep 2016 MS-OXCMSG-20160914 https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXCMSG/7fd7ec40-deec-4c06-9493-1bc06b349682 <b>Protocol Revision:</b> 21.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMSG/[MS-OXCMSG]-160613.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMSG/[MS-OXCMSG]-160613.docx">DOCX</a></li></ul> Mon, 13 Jun 2016 MS-OXCMSG-20160613