Setting up an SMTP server to send 10,000 emails per day requires careful configuration and adherence to best practices. First, choose a reliable and reputable SMTP server provider that allows sending bulk emails. Configure your server with proper authentication methods, such as SSL or TLS, to ensure secure communication. Implement DKIM (DomainKeys Identified Mail) and SPF (Sender Policy Framework) records to improve email deliverability and reduce the likelihood of your emails being marked as spam. Additionally, monitor your email sending reputation and maintain a clean email list by removing bounced or unsubscribed addresses regularly. It's crucial to respect anti-spam laws and user consent, so always obtain permission before sending emails, and provide an easy way for recipients to opt out. Regularly check your server logs for any issues, and optimize your email content to engage recipients effectively. By following these steps, you can set up your SMTP server for sending 10,000 emails per day efficiently and responsibly.