How to add an email attachment from a byte array?

Question

I have a byte[] with the contents of file. I would like to send it as an attachment using System.Net.Mail.

I noticed the attachment class

Answer 1

You need to convert the byte[] to a MemoryStream using the appropriate MemoryStream constructor overload.

Attachment att = new Attachment(new MemoryStream(myBytes), name);

Note that the name parameter to Attachment's constructor specifies the name of the attachment's content type, not the name of the attachment itself.