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I set up a Node.js app on a DigitalOcean Droplet and configured Nodemailer to send transactional emails directly via SMTP. Everything looks correct in the code but emails are not going out and I am getting connection timeout errors.
After some digging I found that port 25 is not reachable. Is this a firewall issue on my end, or does DigitalOcean block this by default? And if so, what is the recommended way to send emails from a Droplet?
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Maria Smith
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bitandmap
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David Sen
Kelvin Agyare