Configure Optimails on your email client or multifunction printer

    Overview

    Optimails is compatible with all standard email clients (Outlook, Apple Mail, Thunderbird, etc.) as well as multifunction printers for sending scanned documents by email (scan-to-mail).

    The configuration relies on IMAPS (incoming mail) and SMTPS (outgoing mail) protocols, with mandatory SSL/TLS encryption.

    IMAPS / SMTPS Connection Settings

    Incoming Mail — IMAPS

    Parameter Value
    Server mails.optimails.com
    Port 993
    Encryption SSL/TLS (required)
    Authentication Full email address + password

    Outgoing Mail — SMTPS

    Parameter Value
    SMTP Server mails.optimails.com
    SSL Port 465
    STARTTLS Port 587
    Encryption SSL/TLS or STARTTLS (required)
    Authentication Yes — full email address + password

    Configuration on a Multifunction Printer (Scan-to-Mail)

    📠 Good news for administrators: Optimails licenses natively include SMTP authentication and outbound email protection, with the ability to configure a dedicated SMTP hostname directly on your device.

    This allows your multifunction printer to operate as an authenticated SMTP relay without requiring intermediary infrastructure.

    Settings to Configure on the Printer

    Parameter Value
    SMTP Server mails.optimails.com
    Port 465 (SSL) or 587 (STARTTLS)
    Encryption SSL/TLS or STARTTLS — required
    Authentication Yes — sender account username + password
    Display Name / Sender Full email address of the account

    The multifunction printer must support STARTTLS or SSL.
    Verify this requirement in the manufacturer's documentation before configuration.

    Limitations for Multifunction Printers

    These limits apply per Optimails mailbox used as the sender account:

    Limitation Value
    Maximum recipients per email 50
    Maximum emails per mailbox / 24h 300

    These limits are suitable for standard scan-to-mail usage.
    For higher volumes, contact Secuserve support.

    Login Credentials

    Regardless of the configured client or device:

    Field Value
    Username / Login Your full email address
    Password Your Optimails account password
    Display Name Your name (or department/service name)

    Related Resources

    • DNS Configuration for Optimails Deliverability

    • Optimails Connection Guide for Outlook

    • Optimails IMAPS Configuration — Official Documentation

    • Connecting to Pronto Webmail

    • Administration Console: https://www.security-mail.net

    Published