Not receiving email notification on gmail

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Hi,

I have edited the settings as below

- SMTP_EMAIL_NOTIFICATIONS_ENABLED=true
- SMTP_HOST=smtp.gmail.com
- SMTP_PORT=465
- SMTP_USE_TLS=true
- SMTP_USERNAME=YourEmail@gmail.com
- SMTP_PASSWORD=YourEmailPassword
- SMTP_FROM_EMAIL=YourEmail@gmail.com
- SMTP_RECEIVER_EMAIL=YourEmail@gmail.com
I'm getting an error like below

xsshunterexpress_1 | (node:29) UnhandledPromiseRejectionWarning: Error: Invalid login: 535-5.7.8 Username and Password not accepted. Learn more at
xsshunterexpress_1 | 535 5.7.8 https://support.google.com/mail/?p=BadCredentials x14-20020a170902a38e00b001b8b2b95068sm9112067pla.204 - gsmtp
xsshunterexpress_1 | at SMTPConnection._formatError (/app/node_modules/nodemailer/lib/smtp-connection/index.js:774:19)
xsshunterexpress_1 | at SMTPConnection._actionAUTHComplete (/app/node_modules/nodemailer/lib/smtp-connection/index.js:1513:34)
xsshunterexpress_1 | at SMTPConnection. (/app/node_modules/nodemailer/lib/smtp-connection/index.js:540:26)
xsshunterexpress_1 | at SMTPConnection._processResponse (/app/node_modules/nodemailer/lib/smtp-connection/index.js:932:20)
xsshunterexpress_1 | at SMTPConnection._onData (/app/node_modules/nodemailer/lib/smtp-connection/index.js:739:14)
xsshunterexpress_1 | at TLSSocket.SMTPConnection._onSocketData (/app/node_modules/nodemailer/lib/smtp-connection/index.js:189:44)
xsshunterexpress_1 | at TLSSocket.emit (events.js:314:20)
xsshunterexpress_1 | at addChunk (_stream_readable.js:297:12)
xsshunterexpress_1 | at readableAddChunk (_stream_readable.js:272:9)
xsshunterexpress_1 | at TLSSocket.Readable.push (_stream_readable.js:213:10)
xsshunterexpress_1 | (node:29) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 2)

I have checked in the forums it is mentioned that Gmail SMTP port: 465 (SSL) or 587 (TLS), so I changed to 587, I got the below message.

xsshunterexpress_1 | (node:30) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
xsshunterexpress_1 | (node:30) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

Start with the SMTP environment variables in the issue and the Nodemailer SMTP connection shown in the stack trace; inspect the email notification entry point and how rejected authentication promises are handled. Reproduce the Gmail configuration and determine whether the intended fix is configuration guidance or a code change, with successful notification delivery and no unhandled rejection as the completion criteria.

Written by the indexing model from the issue text.