{"id":1855,"date":"2011-06-12T15:02:18","date_gmt":"2011-06-12T13:02:18","guid":{"rendered":"http:\/\/www.limilabs.com\/blog\/?p=1855"},"modified":"2014-06-04T09:14:48","modified_gmt":"2014-06-04T07:14:48","slug":"search-gmail-message-id","status":"publish","type":"post","link":"https:\/\/www.limilabs.com\/blog\/search-gmail-message-id","title":{"rendered":"Search Gmail message id"},"content":{"rendered":"<p>Gmail provides a unique message ID for each email so that a unique message may be identified across multiple folders.<\/p>\n<p>Retrieval of this message ID is supported via the X-GM-MSGID attribute on the FETCH command.<\/p>\n<p>The message ID is a 64-bit unsigned integer.<\/p>\n<p>The X-GM-MSGID attribute may also be used in the SEARCH command to find the UID of a message given Gmail&#8217;s message ID.<\/p>\n<pre class=\"brush: csharp; title: ; notranslate\" title=\"\">\r\n\/\/ C# version\r\n\r\nusing (Imap imap = new Imap())\r\n{\r\n    imap.ConnectSSL(&quot;imap.gmail.com&quot;);\r\n    imap.UseBestLogin(&quot;pat@gmail.com&quot;, &quot;password&quot;);\r\n\r\n    \/\/ Select 'All Mail' folder\r\n    CommonFolders common = new CommonFolders(client.GetFolders());\r\n    client.Select(common.AllMail);\r\n\r\n    long newestMessageUID = imap.GetAll().Last();\r\n    var messageId = imap.GetEnvelopeByUID(newestMessageUID).GmailMessageId;\r\n\r\n    List&lt;long&gt; uids = imap.Search().Where(\r\n        Expression.GmailMessageId(messageId));\r\n\r\n    MessageInfo info = imap.GetMessageInfoByUID(uids.First());\r\n\r\n    Console.WriteLine(&quot;{0} - {1}&quot;,\r\n        info.Envelope.GmailMessageId,\r\n        info.Envelope.Subject);\r\n\r\n    imap.Close();\r\n}\r\n<\/pre>\n<pre class=\"brush: vb; title: ; notranslate\" title=\"\">\r\n' VB.NET version\r\n\r\nUsing imap As New Imap()\r\n\timap.ConnectSSL(&quot;imap.gmail.com&quot;)\r\n\timap.UseBestLogin(&quot;pat@gmail.com&quot;, &quot;password&quot;)\r\n\r\n\t' Select 'All Mail' folder\r\n\tDim common As New CommonFolders(client.GetFolders())\r\n\tclient.Select(common.AllMail)\r\n\r\n\tDim newestMessageUID As Long = imap.GetAll().Last()\r\n\tDim messageId = imap.GetEnvelopeByUID(newestMessageUID).GmailMessageId\r\n\r\n\tDim uids As List(Of Long) = imap.Search().Where( _\r\n\t\tExpression.GmailMessageId(messageId))\r\n\r\n\tDim info As MessageInfo = imap.GetMessageInfoByUID(uids.First())\r\n\r\n\tConsole.WriteLine(&quot;{0} - {1}&quot;, _\r\n            info.Envelope.GmailMessageId, _\r\n            info.Envelope.Subject)\r\n\r\n\timap.Close()\r\nEnd Using\r\n<\/pre>\n<p>You can learn more about this Gmail IMAP extension here:<br \/>\n<a href=\"http:\/\/code.google.com\/apis\/gmail\/imap\/#x-gm-msgid\">http:\/\/code.google.com\/apis\/gmail\/imap\/#x-gm-msgid<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Gmail provides a unique message ID for each email so that a unique message may be identified across multiple folders. Retrieval of this message ID is supported via the X-GM-MSGID attribute on the FETCH command. The message ID is a 64-bit unsigned integer. The X-GM-MSGID attribute may also be used in the SEARCH command to [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[15,25,28,77,57,64],"class_list":["post-1855","post","type-post","status-publish","format-standard","hentry","category-mail-dll","tag-c","tag-gmail","tag-imap","tag-imap-component","tag-vb-net","tag-x-gm-msgid"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/posts\/1855"}],"collection":[{"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/comments?post=1855"}],"version-history":[{"count":4,"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/posts\/1855\/revisions"}],"predecessor-version":[{"id":2521,"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/posts\/1855\/revisions\/2521"}],"wp:attachment":[{"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/media?parent=1855"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/categories?post=1855"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/tags?post=1855"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}