SMTP (Simple Mail Transfer Protocol) authenticity is crucial for sending emails on Linux cPanel servers for several reasons:
Security: Authenticating SMTP ensures that only authorized users can send emails through the server.This prevents unauthorized access and reduces the risk of spam or malicious emails being sent from your server.
Reputation: Using authenticated SMTP helps maintain the server’s reputation.If a server is used to send spam, it can be blacklisted by email providers, making it difficult for legitimate emails to be delivered.
Compliance: Many email providers and regulatory bodies require email servers to use authenticated SMTP to comply with anti-spam laws and regulations.
Reliability: Authenticated SMTP ensures that emails are sent from verified sources, which improves the chances of emails being delivered to the recipient’s inbox rather than being marked as spam.
Tracking/Accountability: Authentication allows for better tracking of sent emails and accountability, as each email can be traced back to an authenticated user.
In summary, SMTP authenticity is essential for maintaining security, reputation, compliance, reliability, and accountability when sending emails from Linux cPanel servers.