Stop node mailer scheduler after 3 days of subscribing to newsletter - node.js

Question

I have a node.js application and I am using node mailer. When user subscribes to newsletter I send him newsletter every day at specific hour. How can I achieve that it will stop sending to that specific user after 3 days.
Code in MailServiceCron.ts:
export const CRON = () => {
scheduleJob("0 5 * * *", async () => {
try {
let UserList = await User.getUsersByDate();
UserList.forEach(async (user: IUserGet) => {
var content = fs.readFileSync("src/data/email.html");
var htmlbody = content.toString();
await fetch(
"api_url" +
process.env.USER_KEY,
{
method: "POST",
headers: { "Content-Type": "application/json" },
}
)
.then(async (res) => {
return [await res.json(), res.status];
})
.then(([data, status]) => {
console.log(data);
if (data.steviloDelovnihMest > 0) {
let transporter = nodemailer.createTransport({
host: "host",
port: 25,
secure: false, // true for 465, false for other ports
});
let info = transporter.sendMail({
from: "<no-reply#text.com>", // sender address
to: user.email, // list of receivers
subject: `test`, // Subject line// plain text body
html: htmlbody, // html body
});
}
})
.catch((error) => {
return console.log(error);
});
});
console.log("Sending mails");
} catch (e) {
console.log(e);
}
});
};
function deleteEmptyProps(obj: any): any {
Object.keys(obj).forEach((k) => {
if (
!obj[k] ||
obj[k] === undefined ||
(Array.isArray(obj[k]) && obj[k].length === 0)
) {
delete obj[k];
}
});
return obj;
}
export const deletingNonActiveCRON = () => {
scheduleJob("0 * * * *", async () => {
try {
let response = await User.deleteNonActive();
console.log(response);
} catch (e) {
console.log(e);
}
});
};
And in my separate file mail.ts i have this:
module.exports.deleteNonActive = async function () {
let date = new Date();
return await User.deleteMany({
$and: [
{ dateStart: { $lt: new Date(date.setHours(date.getHours() - 48)) } },
{ aktivnost: { $eq: false } },
],
});
};
My idea is that I need also some deleteExpired function, something like that?
module.exports.deleteExpired = async function () {
await User.updateMany(
{
$and: [
{ dateEnd: { $lt: new Date() } },
{ aktivnost: { $eq: true } },
],
},
{ $set: { aktivnost: false } }
);
};
Which I also call in MailServiceCron.ts file like deleteNonActive function?