Definition
An email server is a computer system that sends, receives, and stores email messages using protocols such as SMTP (outgoing), IMAP, and POP3 (incoming). For creators running their own domain-based email (e.g., [email protected]), email is routed through a mail server provided by services like Google Workspace, Microsoft 365, or Zoho Mail. Understanding email server basics is important for creators who manage their own domains, set up business email, or troubleshoot deliverability issues with their newsletter platforms.