Applies to: All Reolink IP cameras
There are several possible causes for send email failed and get 400 Error when configuring email settings via Reolink App. You may follow the steps below to troubleshoot the problem.
Cause 1. Incorrect email address or password.
Solution: Double-check your email address and email password are correct. If the recipient address is wrong, it will cause the "invalid receiver" error.
For some email accounts, it will require the authorization code for login rather than an email password.
Cause 2. Incorrect SMTP Server & Port.
Solution: Google the SMTP Server & SMTP port of your email service and input the correct info. Then you may click on E-mail Test to see if it works.
For your reference:
|Email Service Provider||SMTP Server||SMTP Port (SSL or TLS Enabled)|
|Gmail||smtp.gmail.com||465 or 587|
|Yahoo Email||smtp.mail.yahoo.com||465 or 587|
Cause 3. Your email service has disabled access to third-party software.
Solution: Go to your email account settings to enable less secure apps to access the account. See an example of how to configuring Gmail security settings.
If the problem persists after going through the steps above, you may set other mailboxes as Sender Address and see whether you can receive a test email or contact our support team for additional help. Feel free to set any mailbox as the Sender Address as it is the Recipient Address that the emails are actually sent to.