Node-RED: Handle Error "SSL routines:ssl3_get_record:wrong version number:../deps/openssl/openssl/ssl/record/ssl3_record.c"

This documentation is part of the Getting Started guide. You can view the complete guide here: How to Get Started with Node-RED.

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If you see this error when sending an email, it is likely because you have selected the "Use secure connection" option in your email node configuration.

Since the Stackhero email server and the Node-RED server run on the same instance, they communicate locally, so you do not need to use TLS (SSL) encryption. Enabling the secure connection option causes Node-RED to use TLS to communicate with the email server, leading to the SSL error about a "wrong version number".

Please note that if the recipient server supports encryption, the email will be automatically encrypted with TLS. This has been pre-configured for you.