unable to send and receive email from https:app.plantationja.org

I am writing to request your urgent assistance regarding an issue we are experiencing with our domain: https://app.plantationvillageja.org.

At present, we are unable to send or receive any emails associated with this domain. We have checked from our side, but the issue persists. I would appreciate your help in isolating the root cause and implementing a fix as soon as possible. i've open port 25/TCP in the firewall.

Please let me know if you require any specific logs, access details, or further information to troubleshoot this matter.

Thank you for your prompt attention.