https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXCMAPIHTTP/d502edcf-0b22-42f2-8500-019f00d60245 Specifies the Messaging Application Programming Interface (MAPI) Extensions for HTTP, which enable a client to access personal messaging and directory data on a server by sending HTTP requests and receiving responses returned on the same HTTP connection. This protocol extends HTTP and HTTPS. https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXCMAPIHTTP/d502edcf-0b22-42f2-8500-019f00d60245 <b>Protocol Revision:</b> 14.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMAPIHTTP/[MS-OXCMAPIHTTP].pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMAPIHTTP/[MS-OXCMAPIHTTP]-240416.docx">DOCX</a></li></ul> Tue, 16 Apr 2024 MS-OXCMAPIHTTP-20240416 https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXCMAPIHTTP/d502edcf-0b22-42f2-8500-019f00d60245 <b>Protocol Revision:</b> 13.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMAPIHTTP/[MS-OXCMAPIHTTP]-210817.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMAPIHTTP/[MS-OXCMAPIHTTP]-210817.docx">DOCX</a></li></ul> Tue, 17 Aug 2021 MS-OXCMAPIHTTP-20210817 https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXCMAPIHTTP/d502edcf-0b22-42f2-8500-019f00d60245 <b>Protocol Revision:</b> 12.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMAPIHTTP/[MS-OXCMAPIHTTP]-210422.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMAPIHTTP/[MS-OXCMAPIHTTP]-210422.docx">DOCX</a></li></ul> Thu, 22 Apr 2021 MS-OXCMAPIHTTP-20210422 https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXCMAPIHTTP/d502edcf-0b22-42f2-8500-019f00d60245 <b>Protocol Revision:</b> 11.1<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMAPIHTTP/[MS-OXCMAPIHTTP]-181211.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMAPIHTTP/[MS-OXCMAPIHTTP]-181211.docx">DOCX</a></li></ul> Tue, 11 Dec 2018 MS-OXCMAPIHTTP-20181211 https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXCMAPIHTTP/d502edcf-0b22-42f2-8500-019f00d60245 <b>Protocol Revision:</b> 11.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMAPIHTTP/[MS-OXCMAPIHTTP]-181001.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMAPIHTTP/[MS-OXCMAPIHTTP]-181001.docx">DOCX</a></li></ul> Mon, 01 Oct 2018 MS-OXCMAPIHTTP-20181001 https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXCMAPIHTTP/d502edcf-0b22-42f2-8500-019f00d60245 <b>Protocol Revision:</b> 10.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMAPIHTTP/[MS-OXCMAPIHTTP]-180724.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMAPIHTTP/[MS-OXCMAPIHTTP]-180724.docx">DOCX</a></li></ul> Tue, 24 Jul 2018 MS-OXCMAPIHTTP-20180724 https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXCMAPIHTTP/d502edcf-0b22-42f2-8500-019f00d60245 <b>Protocol Revision:</b> 9.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMAPIHTTP/[MS-OXCMAPIHTTP]-171212.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMAPIHTTP/[MS-OXCMAPIHTTP]-171212.docx">DOCX</a></li></ul> Tue, 12 Dec 2017 MS-OXCMAPIHTTP-20171212 https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXCMAPIHTTP/d502edcf-0b22-42f2-8500-019f00d60245 <b>Protocol Revision:</b> 9.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMAPIHTTP/[MS-OXCMAPIHTTP]-170919.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMAPIHTTP/[MS-OXCMAPIHTTP]-170919.docx">DOCX</a></li></ul> Tue, 19 Sep 2017 MS-OXCMAPIHTTP-20170919 https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXCMAPIHTTP/d502edcf-0b22-42f2-8500-019f00d60245 <b>Protocol Revision:</b> 8.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMAPIHTTP/[MS-OXCMAPIHTTP]-170328.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMAPIHTTP/[MS-OXCMAPIHTTP]-170328.docx">DOCX</a></li></ul> Tue, 28 Mar 2017 MS-OXCMAPIHTTP-20170328 https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXCMAPIHTTP/d502edcf-0b22-42f2-8500-019f00d60245 <b>Protocol Revision:</b> 7.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMAPIHTTP/[MS-OXCMAPIHTTP]-160914.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMAPIHTTP/[MS-OXCMAPIHTTP]-160914.docx">DOCX</a></li></ul> Wed, 14 Sep 2016 MS-OXCMAPIHTTP-20160914 https://docs.microsoft.com/en-us/openspecs/exchange_server_protocols/MS-OXCMAPIHTTP/d502edcf-0b22-42f2-8500-019f00d60245 <b>Protocol Revision:</b> 7.0<br/><b>Downloads:</b><br/><ul style="list-style-type: square;"><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMAPIHTTP/[MS-OXCMAPIHTTP]-160613.pdf">PDF</a></li><li><a href="https://msopenspecs.azureedge.net/files/MS-OXCMAPIHTTP/[MS-OXCMAPIHTTP]-160613.docx">DOCX</a></li></ul> Mon, 13 Jun 2016 MS-OXCMAPIHTTP-20160613