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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 <CkBounceW.h> #include <CkMailManW.h> #include <CkEmailBundleW.h> #include <CkEmailW.h> void ChilkatSample(void) { // This example requires the Chilkat API to have been previously unlocked. // See Global Unlock Sample for sample code. CkBounceW bounce; // The mailman object is used for receiving (POP3) // and sending (SMTP) email. CkMailManW mailman; // Set the POP3 server's hostname mailman.put_MailHost(L"mail.chilkatsoft.com"); // Set the POP3 login/password. mailman.put_PopUsername(L"myLogin"); mailman.put_PopPassword(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.) CkEmailBundleW *bundle = mailman.CopyMail(); if (mailman.get_LastMethodSuccess() == false) { wprintf(L"%s\n",mailman.lastErrorText()); return; } int i = 0; CkEmailW *email = 0; while (i < bundle->get_MessageCount()) { email = bundle->GetEmail(i); bool success = bounce.ExamineEmail(*email); if (success == false) { wprintf(L"%s\n",bounce.lastErrorText()); delete bundle; return; } if (bounce.get_BounceType() == 1) { // Hard bounce, log the email address wprintf(L"Hard Bounce: %s\n",bounce.bounceAddress()); } if (bounce.get_BounceType() == 2) { // Soft bounce, log the email address wprintf(L"Soft Bounce: %s\n",bounce.bounceAddress()); } if (bounce.get_BounceType() == 3) { // General bounce, no email address available. wprintf(L"General Bounce: No email address\n"); } if (bounce.get_BounceType() == 4) { // General bounce, log the email address wprintf(L"General Bounce: %s\n",bounce.bounceAddress()); } if (bounce.get_BounceType() == 5) { // Mail blocked, log the email address // A bounce occured because the sender was blocked. wprintf(L"Mail Blocked: %s\n",bounce.bounceAddress()); } if (bounce.get_BounceType() == 6) { // Auto-reply, log the email address wprintf(L"Auto-Reply: %s\n",bounce.bounceAddress()); } if (bounce.get_BounceType() == 7) { // Transient (recoverable) Failure, log the email address wprintf(L"Transient Failure: %s\n",bounce.bounceAddress()); } if (bounce.get_BounceType() == 8) { // Subscribe request, log the email address wprintf(L"Subscribe Request: %s\n",bounce.bounceAddress()); } if (bounce.get_BounceType() == 9) { // Unsubscribe Request, log the email address wprintf(L"Unsubscribe Request: %s\n",bounce.bounceAddress()); } if (bounce.get_BounceType() == 10) { // Virus Notification, log the email address wprintf(L"Virus Notification: %s\n",bounce.bounceAddress()); } if (bounce.get_BounceType() == 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 (bounce.get_BounceType() == 12) { // Challenge/Response - Auto-reply message sent by SPAM software // where only verified email addresses are accepted. wprintf(L"Challenge: %s\n",bounce.bounceAddress()); } if (bounce.get_BounceType() == 13) { // Address Change Notification Message. wprintf(L"Address Change: %s\n",bounce.bounceAddress()); } if (bounce.get_BounceType() == 14) { // Success DSN indicating that the message was successfully relayed. wprintf(L"DSN Successful Relay: \n"); } delete email; i = i + 1; } delete bundle; success = mailman.Pop3EndSession(); } |
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