SMTP wrong Configuration or Exception - User not informed

[app-generator]

If the SMTP credentials are wrong, the registration process fails in the background but the user is not informed.

Here are the steps to reproduce this:

• Save wrong values in .env for SMTP settings
• Create a new user
• Check the runtime log and UI message

@topstar210 please take a look.

TY!

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UI

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Logs

[next-auth][warn][NO_SECRET] 
https://next-auth.js.org/warnings#no_secret
Error: Can't send mail - all recipients were rejected: 550 No Such User Here"
    at SMTPConnection._formatError (webpack-internal:///(rsc)/./node_modules/nodemailer/lib/smtp-connection/index.js:611:19)
    at SMTPConnection._actionRCPT (webpack-internal:///(rsc)/./node_modules/nodemailer/lib/smtp-connection/index.js:1297:28)
    at SMTPConnection.eval (webpack-internal:///(rsc)/./node_modules/nodemailer/lib/smtp-connection/index.js:1255:30)
    at SMTPConnection._processResponse (webpack-internal:///(rsc)/./node_modules/nodemailer/lib/smtp-connection/index.js:748:20)
    at SMTPConnection._onData (webpack-internal:///(rsc)/./node_modules/nodemailer/lib/smtp-connection/index.js:584:14)
    at SMTPConnection._onSocketData (webpack-internal:///(rsc)/./node_modules/nodemailer/lib/smtp-connection/index.js:143:48)
    at TLSSocket.emit (node:events:514:28)
    at addChunk (node:internal/streams/readable:343:12)
    at readableAddChunk (node:internal/streams/readable:316:9)
    at Readable.push (node:internal/streams/readable:253:10)
    at TLSWrap.onStreamRead (node:internal/stream_base_commons:190:23)
    at TLSWrap.callbackTrampoline (node:internal/async_hooks:130:17) {
  code: 'EENVELOPE',
  response: '550 No Such User Here"',
  responseCode: 550,
  command: 'RCPT TO',
  rejected: [ 'whatever@appseed.us' ],
  rejectedErrors: [

[topstar210]

Please share your email SMTP server via DM

[app-generator]

You can use the wrong settings.

The nominal case is when the user gets an error message that suggests the backend issue.

TY!

[topstar210]

in spite of the wrong setting in nextauth, nextauth gives OK request when send the email. and then giving smtp issue after a long time
so can't detect and display the error on UI

[app-generator]

Closing. TY @topstar210.