Zig Requires Chilkat v11.0.0+

Move Selected Emails to another Mailbox Folder

See more IMAP Examples

Downloads emails one by one in a selected mailbox, decides which emails are to be moved, and then moves the set of messages to another mailbox folder. Zig

const std = @import("std");
const chilkat = @import("chilkat");

pub fn main(init: std.process.Init) !void {
    const alloc = init.arena.allocator();

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

    const imap = try chilkat.Imap.init();
    defer imap.deinit();

    // Connect to an IMAP server.
    // Use TLS
    imap.setSsl(true);
    imap.setPort(993);
    imap.connect("imap.example.com") catch {
        std.debug.print("{s}\n", .{try imap.getLastErrorText(alloc)});
        return;
    };

    // Login
    imap.login("myLogin", "myPassword") catch {
        std.debug.print("{s}\n", .{try imap.getLastErrorText(alloc)});
        return;
    };

    // Select an IMAP mailbox
    imap.selectMailbox("Inbox") catch {
        std.debug.print("{s}\n", .{try imap.getLastErrorText(alloc)});
        return;
    };

    // Normally, when an email is downloaded, its "Seen" flag is automatically set.
    // We don't want our program to be interfering with the "Seen" flags.
    // To do this, set the PeekMode to true.
    imap.setPeekMode(true);

    // After selecting the mailbox, the NumMessages property
    // will contain the number of emails in the mailbox.
    // When sequence numbers (not UIDs) are used to reference emails,
    // they range from 1 to N, where N is the number of messages in the mailbox.
    // This example will download the headers by sequence numbers.
    const num_emails = imap.getNumMessages();

    const mset = try chilkat.MessageSet.init();
    defer mset.deinit();

    // Indicate that mset contains sequence numbers, not UIDs.
    mset.setHasUids(false);

    // Fetch each email and decide for each if it is to be moved
    // to a particular other mailbox.  If so, we'll add the sequence number to
    // the mset, and then move all emails in the mset to the other mailbox.
    const email = try chilkat.Email.init();
    defer email.deinit();
    const i = 0;
    while (i < num_emails) {
        // Fetch the email by sequence number.
        imap.fetchEmail(false, @as(u32, @intCast(i + 1)), false, email) catch {
            std.debug.print("{s}\n", .{try imap.getLastErrorText(alloc)});
            return;
        };

        // If it is decided to move the email, add the sequence number to mset, like this:
        mset.insertId(@as(u32, @intCast(i + 1)));
    }

    // If there are emails in mset to be moved, then do it..
    if (mset.getCount() > 0) {
        const dest_folder = "Inbox/SomeOtherFolder";
        // Assuming your IMAP server supports the feature that allows for messages to be moved to another folder...
        imap.moveMessages(mset, dest_folder) catch {
            std.debug.print("{s}\n", .{try imap.getLastErrorText(alloc)});
            return;
        };
    }

    // Disconnect from the IMAP server.
    try imap.disconnect();
}