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(Unicode C) Bounced Email HandlingDemonstrates how to examine emails and detect which are bounced (automated) replies. Classifies each email according to the type of bounce.
#include <C_CkBounceW.h> #include <C_CkMailManW.h> #include <C_CkEmailBundleW.h> #include <C_CkEmailW.h> void ChilkatSample(void) { HCkBounceW bounce; HCkMailManW mailman; HCkEmailBundleW bundle; int i; HCkEmailW email; BOOL success; // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. bounce = CkBounceW_Create(); // The mailman object is used for receiving (POP3) // and sending (SMTP) email. mailman = CkMailManW_Create(); // Set the POP3 server's hostname CkMailManW_putMailHost(mailman,L"mail.chilkatsoft.com"); // Set the POP3 login/password. CkMailManW_putPopUsername(mailman,L"myLogin"); CkMailManW_putPopPassword(mailman,L"myPassword"); // Copy the all email from the user's POP3 mailbox // into a bundle object. The email remains on the server. // (There are other methods for deleting email from a POP3 server.) bundle = CkMailManW_CopyMail(mailman); if (CkMailManW_getLastMethodSuccess(mailman) == FALSE) { wprintf(L"%s\n",CkMailManW_lastErrorText(mailman)); CkBounceW_Dispose(bounce); CkMailManW_Dispose(mailman); return; } i = 0; while (i < CkEmailBundleW_getMessageCount(bundle)) { email = CkEmailBundleW_GetEmail(bundle,i); success = CkBounceW_ExamineEmail(bounce,email); if (success == FALSE) { wprintf(L"%s\n",CkBounceW_lastErrorText(bounce)); CkEmailBundleW_Dispose(bundle); CkBounceW_Dispose(bounce); CkMailManW_Dispose(mailman); return; } if (CkBounceW_getBounceType(bounce) == 1) { // Hard bounce, log the email address wprintf(L"Hard Bounce: %s\n",CkBounceW_bounceAddress(bounce)); } if (CkBounceW_getBounceType(bounce) == 2) { // Soft bounce, log the email address wprintf(L"Soft Bounce: %s\n",CkBounceW_bounceAddress(bounce)); } if (CkBounceW_getBounceType(bounce) == 3) { // General bounce, no email address available. wprintf(L"General Bounce: No email address\n"); } if (CkBounceW_getBounceType(bounce) == 4) { // General bounce, log the email address wprintf(L"General Bounce: %s\n",CkBounceW_bounceAddress(bounce)); } if (CkBounceW_getBounceType(bounce) == 5) { // Mail blocked, log the email address // A bounce occured because the sender was blocked. wprintf(L"Mail Blocked: %s\n",CkBounceW_bounceAddress(bounce)); } if (CkBounceW_getBounceType(bounce) == 6) { // Auto-reply, log the email address wprintf(L"Auto-Reply: %s\n",CkBounceW_bounceAddress(bounce)); } if (CkBounceW_getBounceType(bounce) == 7) { // Transient (recoverable) Failure, log the email address wprintf(L"Transient Failure: %s\n",CkBounceW_bounceAddress(bounce)); } if (CkBounceW_getBounceType(bounce) == 8) { // Subscribe request, log the email address wprintf(L"Subscribe Request: %s\n",CkBounceW_bounceAddress(bounce)); } if (CkBounceW_getBounceType(bounce) == 9) { // Unsubscribe Request, log the email address wprintf(L"Unsubscribe Request: %s\n",CkBounceW_bounceAddress(bounce)); } if (CkBounceW_getBounceType(bounce) == 10) { // Virus Notification, log the email address wprintf(L"Virus Notification: %s\n",CkBounceW_bounceAddress(bounce)); } if (CkBounceW_getBounceType(bounce) == 11) { // Suspected bounce. // This should be rare. It indicates that the Bounce // component found strong evidence that this is a bounced // email, but couldn't quite recognize everything it // needed to be 100% sure. Feel free to notify // support@chilkatsoft.com regarding emails having this // bounce type. wprintf(L"Suspected Bounce!\n"); } if (CkBounceW_getBounceType(bounce) == 12) { // Challenge/Response - Auto-reply message sent by SPAM software // where only verified email addresses are accepted. wprintf(L"Challenge: %s\n",CkBounceW_bounceAddress(bounce)); } if (CkBounceW_getBounceType(bounce) == 13) { // Address Change Notification Message. wprintf(L"Address Change: %s\n",CkBounceW_bounceAddress(bounce)); } if (CkBounceW_getBounceType(bounce) == 14) { // Success DSN indicating that the message was successfully relayed. wprintf(L"DSN Successful Relay: \n"); } CkEmailW_Dispose(email); i = i + 1; } CkEmailBundleW_Dispose(bundle); success = CkMailManW_Pop3EndSession(mailman); CkBounceW_Dispose(bounce); CkMailManW_Dispose(mailman); } |
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