{"id":1253,"date":"2010-10-25T15:24:51","date_gmt":"2010-10-25T13:24:51","guid":{"rendered":"http:\/\/www.limilabs.com\/blog\/?p=1253"},"modified":"2019-04-16T17:34:13","modified_gmt":"2019-04-16T15:34:13","slug":"receive-emails-using-pop3","status":"publish","type":"post","link":"https:\/\/www.limilabs.com\/blog\/receive-emails-using-pop3","title":{"rendered":"Receive emails using POP3"},"content":{"rendered":"

This article describes how to receive email messages using Mail.dll POP3 component<\/a> and POP3 protocol.<\/p>\n

As a prerequisite you need to add reference to Mail.dll<\/strong> to your project. Please check MSDN how to add reference<\/a> article for details.<\/p>\n

When your reference is added you need to import correct namespaces<\/strong>:<\/p>\n

\r\n\/\/ C#\r\n\r\nusing Limilabs.Mail;\r\nusing Limilabs.Client.POP3;\r\n<\/pre>\n
\r\n' VB\r\n\r\nImports Limilabs.Mail\r\nImports Limilabs.Client.POP3\r\n<\/pre>\n
First thing you need to do is to connect to your POP3 server<\/strong>. Use Connect(string host)<\/em> method to connect to the server. Typically POP3 server is working on port 110. You can use Connect(string host, int port)<\/em> overload when you need to specify different port, or ConnectSSL <\/em> methods to use POP3 over SSL<\/a>.<\/p>\n
\r\n\/\/ C#\r\n\r\nusing (Pop3 pop3 = new Pop3())\r\n{\r\n    pop3.Connect("pop3.example.com");  \/\/ or ConnectSSL for SSL\r\n    pop3.UseBestLogin("user", "password");\r\n\r\n<\/pre>\n
\r\n' VB\r\n\r\nUsing pop3 As New Pop3()\r\n    pop3.Connect("pop3.example.com")   ' or ConnectSSL for SSL\r\n    pop3.UseBestLogin("user", "password")\r\n\r\n<\/pre>\n
Next step is to download all unique ids<\/strong> (uids) of the available messages, and iterate through them:<\/p>\n
\r\n\/\/ C#\r\n\r\nforeach (string uid in pop3.GetAll())\r\n<\/pre>\n
\r\n' VB\r\n\r\nFor Each uid As String In pop3.GetAll()\r\n\r\n<\/pre>\n
Finally we’ll use GetMessageByUID<\/em> method to download the message from the server and MailBuilder <\/em>class to parse it and extract attachments<\/strong>:<\/p>\n
\r\n\/\/ C#\r\n\r\nvar eml = pop3.GetMessageByUID(uid)\r\nIMail email = new MailBuilder().CreateFromEml(eml);\r\n\r\nConsole.WriteLine(email.Subject);\r\nConsole.WriteLine(email.Text);\r\n<\/pre>\n
\r\n' VB\r\n\r\nDim eml = pop3.GetMessageByUID(uid)\r\nDim email As IMail = builder.CreateFromEml(eml)\r\n\r\nConsole.WriteLine(email.Subject)\r\nConsole.WriteLine(email.Text)\r\n<\/pre>\n
At that point you can also access attachments<\/a>.<\/p>\n
Here are the full samples:<\/p>\n
\r\n\/\/ C# version\r\n\r\nusing System;\r\nusing Limilabs.Mail;\r\nusing Limilabs.Client.POP3;\r\n\r\nclass Program\r\n{\r\n    static void Main(string[] args)\r\n    {\r\n        using (Pop3 pop3 = new Pop3())\r\n        {\r\n            pop3.Connect("pop3.example.com");  \/\/ or ConnectSSL for SSL\r\n            pop3.UseBestLogin("user", "password");\r\n\r\n            \/\/ Receive all messages and display the subject\r\n            MailBuilder builder = new MailBuilder();\r\n            foreach (string uid in pop3.GetAll())\r\n            {\r\n                IMail email = builder.CreateFromEml(\r\n                  pop3.GetMessageByUID(uid));\r\n\r\n                Console.WriteLine(email.Subject);\r\n                Console.WriteLine(email.Text);\r\n            }\r\n            pop3.Close();\r\n        }\r\n    }\r\n}\r\n<\/pre>\n
\r\n' VB.NET version\r\n\r\nImports Limilabs.Client.POP3\r\nImports Limilabs.Mail\r\n\r\nPublic Module Module1\r\n    Public Sub Main(ByVal args As String())\r\n\r\n        Using pop3 As New Pop3()\r\n            pop3.Connect("pop3.example.com")   ' or ConnectSSL for SSL\r\n            pop3.UseBestLogin("user", "password")\r\n\r\n            ' Receive all messages and display the subject\r\n            Dim builder As New MailBuilder()\r\n            For Each uid As String In pop3.GetAll()\r\n\r\n                Dim email As IMail = builder.CreateFromEml( _\r\n                    pop3.GetMessageByUID(uid))\r\n\r\n                Console.WriteLine(email.Subject)\r\n                Console.WriteLine(email.Text)\r\n            Next\r\n            pop3.Close()\r\n        End Using\r\n\r\n    End Sub\r\nEnd Module\r\n<\/pre>\n","protected":false},"excerpt":{"rendered":"
This article describes how to receive email messages using Mail.dll POP3 component and POP3 protocol. As a prerequisite you need to add reference to Mail.dll to your project. Please check MSDN how to add reference article for details. When your reference is added you need to import correct namespaces: \/\/ C# using Limilabs.Mail; using Limilabs.Client.POP3; […]<\/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":[15,33,42,57],"class_list":["post-1253","post","type-post","status-publish","format-standard","hentry","category-mail-dll","tag-c","tag-email-component","tag-pop3","tag-vb-net"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/posts\/1253"}],"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=1253"}],"version-history":[{"count":7,"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/posts\/1253\/revisions"}],"predecessor-version":[{"id":5497,"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/posts\/1253\/revisions\/5497"}],"wp:attachment":[{"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/media?parent=1253"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/categories?post=1253"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.limilabs.com\/blog\/wp-json\/wp\/v2\/tags?post=1253"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}