Cannot Decrypt Message and Save Attachment

Aspose.Email Product Family
1

Hi,

I have just downloaded Aspose.EMail.dll version 3.7 with an evaluation licence.

I have written an application to read an e-mail and save the attachment to Disk.

Below is an excerpt from the code:

MailMessage message = client.FetchMessage(messageInfo.SequenceNumber);

// See if signed and decrypt
if (message.IsSigned)
    message.Decrypt();

All works fine for non-signed and non-encrypted messages. Attachments saves all good.

HOWEVER –

When the message is signed and encrypted (message has not been encrypted or signed using Aspose, but some third party), I get problems.

If I run the above with the “Decrypt” statement commented out, the attachment that is saved is named “smime.p7m”

If I run the above with the “Decrypt” statement in, I get the error message:-

[AutoMail.vshost.exe] - [Error] - [8/01/2014 2:55:51 PM] - System.InvalidOperationException: Mail message is not signed

at Aspose.Email.Mail.MailMessage.Decrypt(X509Certificate2 certificate)

at Aspose.Email.Mail.MailMessage.Decrypt()

I have read an associated post on this topic, but it does not help me.

Thanks

Jeff

2

Hi Jeffrey,


Thank you for considering Aspose.Email and we regret any inconvenience caused to you.

I would like to share with you that we encountered such problems in past which were fixed by then. Could you please share a few sample messages with us that we can use to reproduce this issue at our end? We’ll look into it as soon as possible and assist you further.