MailXP Glossary of Terms

Automatic resource scaling for storage and processing.

• Ensures consistent performance even during peak usage
• Prevents downtime or throttling from unexpected load

Why it matters: Traditional servers fail when overloaded. MailXP dynamically adjusts capacity, keeping email flow uninterrupted.

The ability of emails to reach inboxes without being flagged as spam. MailXP ensures:

• IP reputation management
• SPF/DKIM/DMARC validation
• Protection against blacklisting

Why it matters: Self-hosted mail often struggles with delivery to Gmail, Outlook, or iCloud. MailXP solves this with professional-grade deliverability.

A control layer on top of FlexQuota.

• Soft Cap: Notifies admins when usage reaches a threshold, but allows growth to continue.
• Hard Cap: Stops mailbox expansion at threshold until the admin takes action.

Why it matters: Gives IT full control over costs and growth. Entry-level plans may use Hard Caps, while premium plans can run fully unlimited.

Dynamic storage allocation model. Instead of fixed quotas, each mailbox can:

• Start small and auto-expand with usage
• Scale flexibly without admin intervention

Why it matters: Prevents wasted resources. Customers pay only for actual storage consumed, not for pre-purchased capacity.

European data privacy and cybersecurity standards. MailXP:

• Provides region-specific data residency
• Ensures regulatory compliance “out of the box”

Why it matters: Avoids heavy fines and builds trust with European businesses that handle sensitive data.

A low-activity account for employees who only occasionally check email. Examples: field workers, operational staff, or shift employees. They:

• Rarely initiate conversations
• Mostly receive internal updates
• Generate minimal load on the system

Why it matters: In MailXP, Infrequent Users are free of charge. This prevents businesses from paying for unused capacity, unlike traditional per-seat licensing.

MailXP runs as a fully managed solution.

• Zero setup — no server installation required
• Automatic updates and patches
• 24/7 monitoring of availability and security

Why it matters: Removes the operational burden of self-hosted mail servers, which require constant updates, monitoring, and tuning.

A high-activity email account, typically managers, executives, or staff who rely on email as a primary communication tool. They:

• Send/receive large volumes of messages daily
• Often attach heavy files, use multiple devices, and manage distribution lists
• Are more exposed to phishing and targeted threats

Why it matters: Power Users drive business communication but consume more storage and security resources. MailXP packages (50/250/500/750) are sized around the number of Power Users.

Each customer gets their own isolated cloud environment.

• No noisy neighbors (other tenants consuming your resources)
• No data leakage risk from shared-SaaS

Why it matters: Enterprises and regulated industries (finance, healthcare) require data isolation. MailXP guarantees this by design.

A modular policy engine to define how security behaves.

• Rule-based logic: e.g., “If sandbox verdict = malicious → quarantine”
• Granular control: per domain, per user, or per group

Why it matters: Gives admins flexibility. Security is not one-size-fits-all — MailXP adapts to organizational needs without external tools.

An advanced detection system for suspicious files, links, and attachments.

• Runs behavior-based dynamic analysis
• Converts findings into a global threat hash database
• One customer’s detection → protection for all users

Why it matters: Creates a “network effect” in security. Even if only a subset of customers enable Sandbox, the entire MailXP platform becomes stronger.

Built-in URL rewriting and continuous link scanning.

• Suspicious links are proxied through MailXP’s security servers
• Rescanned every time a user clicks (1 hour later or 1 month later)

Why it matters: Protects against delayed-activation phishing attacks where a safe-looking link turns malicious after delivery. Few providers offer this level of ongoing protection.

MailXP removes artificial boundaries on:

• Number of domains
• Number of mailboxes
• Storage capacity

Why it matters: Traditional SaaS tools force customers to buy licenses or storage blocks. With MailXP, growth is never limited by vendor constraints.

No per-seat licensing, no hidden fees.

• Pay for active Power Users + consumed storage
• Infrequent Users remain free

Why it matters: Predictable, fair billing. Eliminates the waste of paying for dormant accounts or unused seats.

MailXP integrates multiple detection sources:

• Commercial antivirus
• Open-source threat feeds (ClamAV, YARA)
• Zero-day and zero-hour analytics
• Nation-specific CERT intelligence

Why it matters: Blending multiple sources reduces blind spots. MailXP’s self-developed engine adapts faster than single-vendor security stacks.