Cannot send mail with Discourse on new install but can from command line (on digital ocean)

Just resolved this. The CPanel configuration page for the email account says to use port 465. However, when connecting with discourse I had to use port 587. I believe 587 is the newer port used with TLS and STARTTLS.

Also, be sure to run ‘launcher rebuild app’. Running ‘launcher restart app’ ignored the configuration changes.

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