C++

Delete a Set of POP3 Messages by UIDL

Demonstrates the Chilkat MailMan.DeleteUidlSet method, which marks the POP3 messages whose UIDLs are listed in a StringTable for deletion. Chilkat processes the UIDL set and sends a DELE command for each located message. This example deletes two messages by UIDL.

Background: When you already know exactly which messages to remove — by their stable UIDLs — DeleteUidlSet deletes them all in one call without first downloading them. It is the efficient counterpart to fetching-then-deleting: for example, after processing messages elsewhere, hand back just their UIDLs to clear them. The deletions are committed when the POP3 session ends (unless ImmediateDelete is set).

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C++

#include <CkMailMan.h>
#include <CkStringTable.h>

void ChilkatSample(void)
    {
    bool success = false;

    //  Demonstrates the MailMan.DeleteUidlSet method, which marks the POP3 messages whose UIDLs
    //  are listed in a StringTable for deletion.  Chilkat sends DELE for each located message.

    CkMailMan mailman;

    //  Configure the POP3 server connection.
    mailman.put_MailHost("pop.example.com");
    mailman.put_MailPort(995);
    mailman.put_PopSsl(true);
    mailman.put_PopUsername("user@example.com");
    mailman.put_PopPassword("myPassword");

    //  Build the set of UIDLs to delete.
    CkStringTable uidls;
    uidls.Append("0000000123abcdef");
    uidls.Append("0000000124abcdef");

    //  Mark the messages for deletion.

    success = mailman.DeleteUidlSet(uidls);
    if (success == false) {
        std::cout << mailman.lastErrorText() << "\r\n";
        return;
    }

    //  Unless the ImmediateDelete property is set to true, the messages are only marked for
    //  deletion.  End the POP3 session (which sends the QUIT command) to commit the deletions.
    success = mailman.Pop3EndSession();
    if (success == false) {
        std::cout << mailman.lastErrorText() << "\r\n";
        return;
    }

    std::cout << "Deleted the UIDL set from the POP3 server." << "\r\n";

    //  Note: Explicitly connecting/authenticating is optional.  Chilkat MailMan automatically
    //  connects and authenticates -- using the property settings above -- whenever a server
    //  operation requires it.  Calling the explicit connect/authenticate methods can still be
    //  helpful to determine whether a failure occurs while connecting or while authenticating.
    }