SendGrid email not working in staging server

Description

We are experiencing issues with SendGrid email functionality on the staging server. Emails are not being sent out as expected, and there are no error logs indicating the cause of the failure.

Steps to Reproduce

1. Deploy the latest code to the staging server.
2. Trigger an email send action (e.g., signup process).
3. Observe that the email (e.g. welcome email) is not delivered.

Actual Behavior

No emails are being sent, and there are no error messages in the logs to help identify the issue.

Expected Behavior

Emails should be successfully sent and received when the email-sending function is triggered on the staging server.

Environment

• Server: Staging
• Email Service: SendGrid

Additional Information

• SendGrid is properly configured and working in the development and production environment.
• Checked API keys and credentials, and they appear to be correct.
• Logs have been reviewed, and no relevant error messages are found. (for more details check sengrid logs)