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Advanced MIME Parser/Creator/Editor

By | 5 Oct 2005 | Article
An advanced MIME parser/creator/editor application.

Introduction

This article provides an advanced MIME editor. You can use it for parsing email messages, changing messages and for creating new email messages. It supports creation of complex messages with nested MIME entities. For more info, see help file: LumiSoft.Net.Mime namespace.

Message examples

Simple message:

//--- Beginning of message
From: sender@domain.com
To: recipient@domain.com
Subject: Message subject.
Content-Type: text/plain

Message body text. Bla blaa
blaa,blaa.
//--- End of message

In simple message, the MainEntity is the whole message.

Message with attachments:

//--- Beginning of message
From: sender@domain.com
To: recipient@domain.com
Subject: Message subject.
Content-Type: multipart/mixed; boundary="multipart_mixed"

--multipart_mixed    /* text entity */
Content-Type: text/plain

Message body text. Bla blaa
blaa,blaa.
--multipart_mixed    /* attachment entity */
Content-Type: application/octet-stream

attachment_data
--multipart_mixed--
//--- End of message

Here MainEntity is the multipart_mixed entity, and the text and attachment entities are child entities of MainEntity.

Using the code

Parsing example:

Mime m = Mime.Parse("message.eml");
// Do your stuff with mime

Creating a new simple message:

Mime m = new Mime();
MimeEntity mainEntity = m.MainEntity;
// Force to create From: header field
mainEntity.From = new AddressList();
mainEntity.From.Add(new MailboxAddress("dispaly name","user@domain.com"));
// Force to create To: header field
mainEntity.To = new AddressList();
mainEntity.To.Add(new MailboxAddress("dispaly name","user@domain.com"));
mainEntity.Subject = "subject";
mainEntity.ContentType = MediaType_enum.Text_plain;
mainEntity.ContentTransferEncoding = ContentTransferEncoding_enum.QuotedPrintable;
mainEntity.DataText = "Message body text.";

m.ToFile("message.eml");

Creating a message with text and attachments:

Mime m = new Mime();
MimeEntity mainEntity = m.MainEntity;
// Force to create From: header field
mainEntity.From = new AddressList();
mainEntity.From.Add(new MailboxAddress("dispaly name","user@domain.com"));
// Force to create To: header field
mainEntity.To = new AddressList();
mainEntity.To.Add(new MailboxAddress("dispaly name","user@domain.com"));
mainEntity.Subject = "subject";
mainEntity.ContentType = MediaType_enum.Multipart_mixed;

MimeEntity textEntity = mainEntity.ChildEntities.Add();
textEntity.ContentType = MediaType_enum.Text_plain;
textEntity.ContentTransferEncoding = ContentTransferEncoding_enum.QuotedPrintable;
textEntity.DataText = "Message body text.";

MimeEntity attachmentEntity = mainEntity.ChildEntities.Add();
attachmentEntity.ContentType = MediaType_enum.Application_octet_stream;
attachmentEntity.ContentDisposition = ContentDisposition_enum.Attachment;
attachmentEntity.ContentTransferEncoding = ContentTransferEncoding_enum.Base64;
attachmentEntity.ContentDisposition_FileName = "yourfile.xxx";
attachmentEntity.DataFromFile("yourfile.xxx");
// or
attachmentEntity.Data = your_attachment_data;

License

This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

A list of licenses authors might use can be found here

About the Author

Ivar Lumi



Estonia Estonia

Member



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QuestionGreat job! Thank you so much but... PinmemberATXOOM6:12 5 Nov '11  
AnswerRe: Great job! Thank you so much but... PinmemberIvar Lumi21:13 5 Nov '11  
Generalstrange first line in saved email (*.eml) Pinmembermbican9:48 4 Oct '11  
GeneralRe: strange first line in saved email (*.eml) PinmemberIvar Lumi21:12 5 Nov '11  
Suggestionadd support for linux line endings Pinmembermbican9:34 4 Oct '11  
GeneralRe: add support for linux line endings PinmemberIvar Lumi19:00 4 Oct '11  
GeneralRe: add support for linux line endings Pinmembermbican19:34 4 Oct '11  
Bugmime as attachment - Mime.Attachments[0].data is null Pinmembermbican9:26 4 Oct '11  
GeneralRe: mime as attachment - Mime.Attachments[0].data is null PinmemberIvar Lumi18:59 4 Oct '11  
QuestionExtract Attachment PinmemberTOOGuy11:55 14 Mar '11  
AnswerRe: Extract Attachment PinmemberIvar Lumi20:50 14 Mar '11  
GeneralRe: Extract Attachment PinmemberTOOGuy5:16 16 Mar '11  
General100% CPU usage when sending mails Pinmemberjozefkarton9:49 30 Dec '10  
GeneralRe: 100% CPU usage when sending mails PinmemberIvar Lumi19:54 30 Dec '10  
GeneralRe: 100% CPU usage when sending mails Pinmemberjozefkarton0:27 31 Dec '10  
GeneralRe: 100% CPU usage when sending mails PinmemberIvar Lumi0:32 31 Dec '10  
GeneralRe: 100% CPU usage when sending mails Pinmemberjozefkarton0:59 31 Dec '10  
GeneralRe: 100% CPU usage when sending mails PinmemberIvar Lumi1:35 31 Dec '10  
GeneralRe: 100% CPU usage when sending mails Pinmemberjozefkarton2:06 31 Dec '10  
GeneralRe: 100% CPU usage when sending mails PinmemberIvar Lumi4:56 31 Dec '10  
GeneralRe: 100% CPU usage when sending mails Pinmemberjozefkarton6:32 31 Dec '10  
GeneralRe: 100% CPU usage when sending mails PinmemberIvar Lumi7:10 31 Dec '10  
GeneralBCC missing from Mail_Message.ParseFromFile() PinmemberBrad Bruce14:16 17 Dec '10  
GeneralRe: BCC missing from Mail_Message.ParseFromFile() PinmemberIvar Lumi20:22 17 Dec '10  
GeneralRe: BCC missing from Mail_Message.ParseFromFile() [modified] PinmemberBrad Bruce2:14 18 Dec '10  

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