Редактировать EML в C# .NET

// Load the EML file into Editor
Editor editor = new Editor("source.eml");

// Create and adjust the edit options
EmailEditOptions editOptions = new EmailEditOptions();

// Open input EML document for edit — obtain an intermediate document, that can be edited
EditableDocument beforeEdit = editor.Edit(editOptions);

// Grab EML document content and associated resources from editable document
string content = beforeEdit.GetEmbeddedHtml();

// Send the content to WYSIWYG-editor, edit it there, and send edited content back to the server-side
// This step simulates a such operation
string updatedContent = content.Replace("project", "Edited project");

// Grab edited content and resources from WYSIWYG-editor and create a new EditableDocument instance from it
EditableDocument afterEdit = EditableDocument.FromMarkup(updatedContent, null);

// Create a save options
EmailSaveOptions saveOptions = new EmailSaveOptions();

// Save edited EML document to the file
editor.Save(afterEdit, "edited.eml", saveOptions);