Issue on workflow . Workflow has been verified and the send-email trigger has been specified. However, no email was sent upon the trigger condition being met.
Solution
Login to Confluence as Admin
Go to Settings > General Configuration >
Select Mail Queue :
If there’s nothing here, most possibly the mail service does not works, or Mail Servers is not configured.
again, go to Settings > CONFIGURATION . Mail Servers configure new by selecting Add New SMTP Server
e.g picture below is using gmail service :
Tips How to generate an app password from Gmail
Login to your Gmail account and type App password on the search bar.
Generate App password
Supply this App password on the configuration step above.