“内容处理”时MailKit.Net.Imap读取Gmail附件; 内联“已设置

Question

I have ac# console application that I use to search a Gmail account for emails with attachments and download them. I am using MailKit.Net.Imap.ImapClient to do this.

If the email has been sent with the "Content-Disposition; attachment" set then all works well. If the email has been sent with "Content-Disposition; inline" set, the ImapClient does not see the attachments and I can't download them.

Below is the code I use to do this. Does anyone have any idea how to fix this?

  static public void mail_ReadEmail() { string mail_login = "your login here"; string mail_password = "your password here"; string mail_folderName = "your gmail folder name here"; // Get client & open folder ImapClient client = mail_GetImapClient(mail_login, mail_password); IMailFolder folder = mail_GetIMailFolder(client, mail_folderName); // Get emails DateTime startTime = DateTime.Now.AddMonths(-6); IList<UniqueId> email = folder.Search(SearchQuery .DeliveredAfter(startTime) .And(SearchQuery .FromContains("canon.co.nz"))); // Loop through emails (oldest first) for (int i = email.Count - 1; i >= 0; i--) { // Get message and display subject and date MimeMessage message = folder.GetMessage(email[i]); Console.WriteLine(message.Subject + " - " + message.Date.DateTime.ToShortDateString()); // Show all attachments for this message foreach (MimePart part in message.Attachments) Console.WriteLine("\\t* " + part.FileName); } } 

Answer 1

You can use the BodyParts property instead of the Attachments property.

For example, you could do this:

foreach (MimePart part in message.BodyParts.OfType<MimePart> ().Where (x => x.IsAttachment || (/* other criteria that suggests an attachment */))
    Console.WriteLine("\t* " + part.FileName);

If you want to treat all MimeParts with a Content-Disposition filename attribute or a Content-Type name attribute set, then you could do:

!string.IsNullOrEmpty (x.FileName)