C
C
Attach an Email to Another Email
See more Email Object Examples
Demonstrates the Chilkat Email.AttachEmail method, which attaches a copy of another email to this email object. The attached email is encapsulated in a message/rfc822 subpart. Because a copy is attached, later changes to the source email do not affect the embedded message. This example attaches one email to another.
Background: "Forward as attachment" produces exactly this structure: the original message is embedded whole as a
message/rfc822 part rather than quoted into the body. This preserves the original's headers and formatting intact, which matters for forwarding to a mailbox that will re-parse it, or for reporting spam/phishing with the original evidence attached. Such parts are counted by NumAttachedMessages.Chilkat C Downloads
#include <C_CkEmail.h>
void ChilkatSample(void)
{
BOOL success;
HCkEmail innerEmail;
HCkEmail email;
success = FALSE;
// Demonstrates the AttachEmail method, which attaches a copy of another email to this email
// object. The attached email is encapsulated in a message/rfc822 subpart.
innerEmail = CkEmail_Create();
CkEmail_putSubject(innerEmail,"Original message");
CkEmail_putFrom(innerEmail,"alice@example.com");
CkEmail_putBody(innerEmail,"This is the original message being forwarded.");
email = CkEmail_Create();
CkEmail_putSubject(email,"FW: Original message");
CkEmail_putFrom(email,"bob@example.com");
CkEmail_putBody(email,"See the attached original email.");
// Attach a copy of the inner email as a message/rfc822 part.
success = CkEmail_AttachEmail(email,innerEmail);
if (success == FALSE) {
printf("%s\n",CkEmail_lastErrorText(email));
CkEmail_Dispose(innerEmail);
CkEmail_Dispose(email);
return;
}
printf("NumAttachedMessages = %d\n",CkEmail_getNumAttachedMessages(email));
CkEmail_Dispose(innerEmail);
CkEmail_Dispose(email);
}