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StartTLS

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  1. Knowledge BaseHosted Email
    · 2 min read

    What Are the Ports for SMTP, POP3, and IMAP?

    Our email services support auto-discovery for automatic client setup, but manual configuration requires the correct ports. This guide lists all supported SMTP, POP3, and IMAP ports including recommended encrypted settings on 465, 993, and 995. Learn protocol differences, ISP blocks on port 25, manua
  2. Knowledge BaseHosted Email
    · 3 min read

    Is End-to-End Encryption Supported for Email?

    All ASPnix email services support STARTTLS and TLS/SSL for SMTP, IMAP, and POP3. Windows SmarterMail systems also secure ActiveSync, EWS, and MAPI for Outlook. Delivery is encrypted whenever both endpoints support it. This guide covers protocols, configuration steps, testing with CheckTLS, common pi