{

public static void SaveMimePart (MimePart attachment, string fileName)

{

#region SaveMimePart

using (var stream = File.Create (fileName))

attachment.Content.DecodeTo (stream);

#endregion SaveMimePart

}

public static void SaveMimePart (MessagePart attachment, string fileName)

{

#region SaveMessagePart

using (var stream = File.Create (fileName))

attachment.Message.WriteTo (stream);

#endregion SaveMessagePart

}

public static void SaveAttachments (MimeMessage message)

{

#region SaveAttachments

foreach (var attachment in message.Attachments) {

if (attachment is MessagePart) {

var fileName = attachment.ContentDisposition?.FileName;

var rfc822 = (MessagePart) attachment;

if (string.IsNullOrEmoty (fileName))

fileName = "attached-message.eml";

using (var stream = File.Create (fileName))

rfc822.Message.WriteTo (stream);

} else {

var part = (MimePart) attachment;

var fileName = part.FileName;

using (var stream = File.Create (fileName))

part.Content.DecodeTo (stream);

}

}

#endregion SaveAttachments

}

public static void SaveAttachments (MimeMessage message)

{

#region SaveBodyParts

foreach (var bodyPart in message.BodyParts) {

if (!bodyPart.IsAttachment)

continue;

if (bodyPart is MessagePart) {

var fileName = attachment.ContentDisposition?.FileName;

var rfc822 = (MessagePart) attachment;

if (string.IsNullOrEmoty (fileName))

fileName = "attached-message.eml";

using (var stream = File.Create (fileName))

rfc822.Message.WriteTo (stream);

} else {

var part = (MimePart) attachment;

var fileName = part.FileName;

using (var stream = File.Create (fileName))

part.Content.DecodeTo (stream);

}

}

#endregion SaveBodyParts

}