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我想压缩收到的电子邮件之前，它被附加到另一封电子邮件。所以我坚持使用zip部分。我试图压缩的对象是一个COM对象，不支持序列化。任何可以帮助我进步的想法都是值得欢迎的！VSTO Outlook加载项：邮编COM对象
而且到目前为止的代码（selObject是COM对象）：
private void Report_Malicious_Email_Click(object sender, RibbonControlEventArgs e)
{
// selObject este mailul selectat
Object selObject = this.Application.ActiveExplorer().Selection[1];
if (selObject is Outlook.MailItem) // de aici incepe logica pentru forward cu atasament!
{
using (MemoryStream msCompressed = new MemoryStream())
using (GZipStream gZipStream = new GZipStream(msCompressed, CompressionMode.Compress))
using (MemoryStream msDecompressed = new MemoryStream())
{
new BinaryFormatter().Serialize(msDecompressed, selObject);
byte[] byteArray = msDecompressed.ToArray();
gZipStream.Write(byteArray, 0, byteArray.Length);
gZipStream.Close();
msCompressed.ToArray();
}
Outlook.MailItem eMail =
(Outlook.MailItem)this.Application.CreateItem(Outlook.OlItemType.olMailItem);
eMail.Subject = subjectEmail;
eMail.To = toEmail;
eMail.Body = bodyEmail;
eMail.Attachments.Add(selObject);
eMail.Send();
}
}