Is it possible to use sendmail?


I have a simple rails app that sends an email using sendmail. The application deploys and starts up without a problem but throws an error when it tries to send an email. Since it works locally, I assume renders servers don’t have sendmail installed? Is that the problem?



Render doesn’t provide any SMTP relays/features, in addition, AWS-based instances (most of them) have port 25 blocked by default.

You’d need to configure details for an appropriate SMTP server/relay that doesn’t use port 25.


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