C

IMAP Find Emails by Date

See more IMAP Examples

Explains how to find emails by date using the IMAP protocol. C

#include <C_CkImap.h>
#include <C_CkMessageSet.h>
#include <C_CkEmail.h>

void ChilkatSample(void)
    {
    BOOL success;
    HCkImap imap;
    const char *onDate;
    const char *betweenDates;
    BOOL fetchUids;
    HCkMessageSet messageSet;
    HCkEmail email;
    int messageCount;
    int i;

    success = FALSE;

    //  This example requires the Chilkat API to have been previously unlocked.
    //  See Global Unlock Sample for sample code.

    imap = CkImap_Create();

    //  Connect to an IMAP server.
    CkImap_putSsl(imap,TRUE);
    CkImap_putPort(imap,993);
    success = CkImap_Connect(imap,"imap.example.com");
    if (success == FALSE) {
        printf("%s\n",CkImap_lastErrorText(imap));
        CkImap_Dispose(imap);
        return;
    }

    //  Login
    success = CkImap_Login(imap,"myLogin","myPassword");
    if (success == FALSE) {
        printf("%s\n",CkImap_lastErrorText(imap));
        CkImap_Dispose(imap);
        return;
    }

    //  Select an IMAP mailbox
    success = CkImap_SelectMailbox(imap,"Inbox");
    if (success == FALSE) {
        printf("%s\n",CkImap_lastErrorText(imap));
        CkImap_Dispose(imap);
        return;
    }

    //  In the IMAP (Internet Message Access Protocol) protocol, criteria strings are used to search for emails matching specific criteria on the mail server. 
    //  When searching for emails by date, you can use criteria strings to specify the date range you're interested in.
    //  
    //  IMAP provides several options for searching emails by date using criteria strings. Here are the commonly used ones:
    //  
    //  1. BEFORE: Searches for emails sent before a specific date.
    //     Example: BEFORE 01-Apr-2022
    //  
    //  2. ON: Searches for emails sent on a specific date.
    //     Example: ON 01-Apr-2022
    //  
    //  3. SINCE: Searches for emails sent after a specific date.
    //     Example: SINCE 01-Apr-2022
    //  
    //  4. SENTBEFORE: Searches for emails whose date header (sent date) is before a specific date.
    //     Example: SENTBEFORE 01-Apr-2022
    //  
    //  5. SENTON: Searches for emails whose date header (sent date) is on a specific date.
    //     Example: SENTON 01-Apr-2022
    //  
    //  6. SENTSINCE: Searches for emails whose date header (sent date) is after a specific date.
    //     Example: SENTSINCE 01-Apr-2022
    //  

    //  The date format used in IMAP criteria strings is typically a specific format like "DD-Mon-YYYY" (e.g., "01-Apr-2022"), but some servers may also accept other formats 
    //  such as "YYYY-MM-DD". It's essential to check the documentation or specifications of the IMAP server you're working with to ensure compatibility with the 
    //  date format you're using.
    //  
    //  By combining these date criteria strings with other search criteria (such as sender, recipient, subject, etc.), 
    //  you can effectively filter and retrieve emails based on various conditions.
    //  

    //  Search for messages on a specific date.
    //  The date string is DD-Month-YYYY where Month is
    //  Jan, Feb, Mar, Apr, May, Jun, Jul, Aug, Sep, Oct, Nov, or Dec.
    onDate = "SENTON 15-Apr-2024";

    //  Search for messages between two dates.  SENTBEFORE
    //  finds emails sent before a date, and SENTSINCE finds
    //  email sent on or after a date.  The "AND" operation
    //  is implied by joining criteria, separated by spaces.
    betweenDates = "SENTSINCE 12-Apr-2024 SENTBEFORE 15-Apr-2024";

    //  We can choose to fetch UIDs or sequence numbers.
    fetchUids = TRUE;

    messageSet = CkMessageSet_Create();
    success = CkImap_QueryMbx(imap,betweenDates,fetchUids,messageSet);
    if (success == FALSE) {
        printf("%s\n",CkImap_lastErrorText(imap));
        CkImap_Dispose(imap);
        CkMessageSet_Dispose(messageSet);
        return;
    }

    printf("%s\n",CkMessageSet_toCompactString(messageSet));

    //  Download each email in the message set.
    email = CkEmail_Create();
    messageCount = CkMessageSet_getCount(messageSet);
    i = 0;
    while (i < messageCount) {
        success = CkImap_FetchEmail(imap,FALSE,CkMessageSet_GetId(messageSet,i),fetchUids,email);
        if (success == FALSE) {
            printf("%s\n",CkImap_lastErrorText(imap));
            CkImap_Dispose(imap);
            CkMessageSet_Dispose(messageSet);
            CkEmail_Dispose(email);
            return;
        }

        printf("%s\n",CkEmail_subject(email));
        //  ...

        i = i + 1;
    }

    //  Disconnect from the IMAP server.
    success = CkImap_Disconnect(imap);


    CkImap_Dispose(imap);
    CkMessageSet_Dispose(messageSet);
    CkEmail_Dispose(email);

    }