Can I Send Emails Without Setting Up a Full Email Server?

Has anyone tried using Amazon Lambda for this? I’m genuinely curious! Not suggesting it, but I wonder if it might help. You could pair it with Amazon SES to handle the email sending aspect.

Honestly, if email isn’t central to your service, I’d recommend using a third-party email service. It saves you time and lets you focus on development instead of dealing with email delivery issues.

You can technically handle sending emails without a full server setup by looking up the host's MX record and connecting via SMTP. However, there's a major catch: due to the prevalence of spam, sending emails this way tends to trigger spam filters, making it likely your emails will just vanish into the ether. Plus, running your own email server comes with its own set of headaches, like managing SPF, DKIM, and DMARC records to maintain a good reputation with email providers.

Instead of setting up a whole email server, consider using an SMTP relay service. Many VPS providers offer basic SMTP that you can configure for your Python app. Just authenticate with their service and send through their infrastructure. I did this for a project last year, and it worked well. Just be cautious with the authentication part—make sure your login links expire quickly and think about rate limiting to avoid spam.