Since the on-premises email server has been decommissioned and users are experiencing issues with scan-to- email functionality, the best solution would be to configure an email relay. An email relay server can accept emails from devices like printers and forward them to the correct destination (such as a cloud-based email service). This avoids the need to bring back the old server or set up a new one.
* A. Configure an email relay on an existing server: This allows the scanner to send emails through another server, ensuring the functionality is restored.
Why the other options are incorrect:
* B. Configure a secure, cloud-based email relay: While a cloud-based solution could work, configuring an email relay on an existing server is a more immediate and likely solution.
* C. Bring the old email server back into production: This is unnecessary and would defeat the purpose of decommissioning it.
* D. Configure a new email server from scratch: Setting up a new email server would be time- consuming and not necessary in this situation.
This is part of the Networking and Troubleshooting domain in the CompTIA A+ Core 1 exam.