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C#/CSharp Example The following code demonstrates how to verify S/MIME digital signature and decrypt encrypted email.
Code:
// The following example codes demonstrate parsing S/MIME email - digital signature and decryption
// To get full sample projects, please download and install EAGetMail on your machine.
// To run it correctly, please change email server, user, password, folder, file name value to yours
using System;
using System.Collections;
using System.Collections.Generic;
using System.Text;
using System.IO;
// Add EAGetMail namespace
using EAGetMail;
namespace receiveemail
{
class Program
{
private static void ParseEmail(string emlFile)
{
Mail oMail = new Mail("TryIt");
oMail.Load(emlFile, false);
if (oMail.IsEncrypted)
{
try
{
// This email is encrypted, we decrypt it by user default certificate.
// You can also use specified certificate like this
// Certificate oCert = new Certificate();
// oCert.Load("c:\test.pfx", "pfxpassword",
// Certificate.CertificateKeyLocation.CRYPT_USER_KEYSET);
// oMail = oMail.Decrypt( oCert );
oMail = oMail.Decrypt(null);
}
catch (Exception ep)
{
Console.WriteLine(ep.Message);
}
}
if (oMail.IsSigned)
{
try
{
// This email is digital signed.
EAGetMail.Certificate cert = oMail.VerifySignature();
Console.WriteLine("This email contains a valid digital signature.");
// You can add the certificate to your certificate storage like this
// cert.AddToStore(
// Certificate.CertificateStoreLocation.CERT_SYSTEM_STORE_CURRENT_USER,
// "addressbook" );
// Then you can use send the encrypted email back to this sender.
}
catch (Exception ep)
{
Console.WriteLine(ep.Message);
}
}
// Parse Sender
Console.WriteLine("From: {0}", oMail.From.ToString());
// Parse To/Recipient
MailAddress[] addrs = oMail.To;
for (int i = 0; i < addrs.Length; i++)
{
Console.WriteLine("To: {0}", addrs[i].ToString());
}
// Parse CC
addrs = oMail.Cc;
for (int i = 0; i < addrs.Length; i++)
{
Console.WriteLine("To: {0}", addrs[i].ToString());
}
// Parse subject
Console.WriteLine("Subject: {0}", oMail.Subject);
// Parse Text/Plain body
Console.WriteLine("TextBody: {0}", oMail.TextBody);
// Parse HTML body
Console.WriteLine("HtmlBody: {0}", oMail.HtmlBody );
// Parse attachments
Attachment[] atts = oMail.Attachments;
for (int i = 0; i < atts.Length; i++)
{
Console.WriteLine("Attachment: {0}", atts[i].Name);
}
}
static void Main(string[] args)
{
ParseEmail( "c:\\my folder\\test.eml" );
}
}
}
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Rank: Newbie
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Joined: 11/26/2019(UTC)
Posts: 1
Location: Moscow
Hello! I was very interested in this example code, with its help I was able to get data about signatures in a letter in which the Bat sees nothing. But I have a question. The thing is, I'm dealing with letters that may have more than one signature. In this case, how can I get data about all certificates?
Rank: Administration
Groups: Administrators
Joined: 11/11/2010(UTC) Posts: 1,152
Thanks: 9 times Was thanked: 55 time(s) in 55 post(s)
Originally Posted by: bioPack Hello! I was very interested in this example code, with its help I was able to get data about signatures in a letter in which the Bat sees nothing. But I have a question. The thing is, I'm dealing with letters that may have more than one signature. In this case, how can I get data about all certificates?
Hi, very few email has multiple signatures, could you send an email to
support@emailarchitect.net for assistance?
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