I have a problem that needs help because the Email can't be sent

[Lilly]

HI @Quốc_Khởi_Lê Welcome to Discourse Meta

Is this a standard install? FYI Gmail is not a transactional email service. You need to use an email service like Mailgun.

Email delivery configuration checklist

Email deliverability is complicated. Here are a few important things you should check first: Be sure to set the notification email from: address correctly in your site settings. The domain specified in the “from” address of the emails you send is the domain your email will be validated against. Know how to view the raw source of the email in your mail client, so you can examine email headers for important clues. In Gmail, it is the “show original” option in the drop-down menu at the top ri…

Troubleshoot email on a new Discourse install

You just installed Discourse via the install guide, but email doesn’t seem to work. Unfortunately this means you can’t log in as an admin to finalize the install. Let’s troubleshootize! Try the doctor If you run ./discourse-doctor it will check several ways that your mail configuration might be broken, and offer advice. Try that first. Did you enter email settings correctly? The simplest way is to run ./discourse-setup again. Did you enter everything correctly? You…

discourse/discourse/blob/main/docs/INSTALL-cloud.md#2-setting-up-email