I have set up an Express JS server on render.com to handle SMTP calls to an email service hosted on one.com with a custom domain. Utilizing nodemailer to manage the SMTP call:
app.post("/send-mail", validate(schema), (req, res) => {
console.log("sending email...");
let transporter = nodemailer.createTransport({
host: process.env.REACT_APP_HOST,
port: process.env.PORT,
auth: {
user: process.env.REACT_APP_EMAIL_LOGIN,
pass: process.env.REACT_APP_EMAIL_PASS,
},
});
The setup works smoothly when running the Express JS server locally, as I receive the test email successfully. However, encountering a timeout error when trying to do the same from Render.com:
Error: Connection timeout
at SMTPConnection._formatError (/opt/render/project/src/node_modules/nodemailer/lib/smtp-connection/index.js:790:19)
at SMTPConnection._onError (/opt/render/project/src/node_modules/nodemailer/lib/smtp-connection/index.js:776:20)
at Timeout.<anonymous> (/opt/render/project/src/node_modules/nodemailer/lib/smtp-connection/index.js:235:22)
at listOnTimeout (node:internal/timers:573:17)
at process.processTimers (node:internal/timers:514:7) {
code: 'ETIMEDOUT',
command: 'CONN'
}
Unclear about the root cause. Should I consider transferring the domain to another provider or is Render.com posing the issue?
Running the Express JS server on Render.com, expected the SMTP call to be successful like localhost. Despite matching settings, experiencing different outcomes.