# InteSys

> Cloud infrastructure company headquartered in Porto Alegre, Brazil. Since 2005, we deliver enterprise-grade cloud servers, email hosting, transactional email, and DevOps services with Tier 3 datacenters in Brazil, Europe, and North America.

INTESYS INFORMATICA LTDA (CNPJ 07.476.949/0001-01), Rua Bezerra de Menezes 155, Porto Alegre, RS, Brazil. Founded 2005. Contact: contato@intesys.com.br. Site content is served in Portuguese (BR, the default market, bare URLs), with English at `/en/...` and Spanish at `/es/...` path prefixes -- e.g. https://www.intesys.io/en/vps is the same page as https://www.intesys.io/vps in English.

## Products

- [Cloud Servers (VPS)](https://www.intesys.io/vps): High-performance virtual private servers in Tier 3 datacenters across Brazil, Europe, and North America. Full root access, enterprise SSD storage, 99.9% uptime SLA. Hardware: DELL/EMC, HP, Purestorage compute; Juniper, Fortinet networking. Virtualization: VMware, KVM, Kubernetes, Docker, LXC/LXD. Network: 200 Gbps inter-datacenter backbone, up to 25/40 Gbps VLAN, own ASN, multi-carrier transit. Certifications: ISO 9001, 20000-1, 27001, 27017, 27018; PCI-DSS; SOC 1, 2, 3. Features: automated backups (3+ day retention), disaster recovery, resource monitoring (CPU/RAM/disk/network), edge-based DDoS protection, managed firewall, free SSL (Let's Encrypt), IPv4/IPv6, provisioning API, email alerts and metric dashboards. Use cases: web applications, databases, development/CI-CD, SaaS/microservices.
- [Infrastructure as a Service (IaaS)](https://www.intesys.io/iaas): Fully managed cloud infrastructure with end-to-end operations across five pillars -- stability, performance, information security, business continuity, multicloud/on-premises. Managed services: OS/system updates with rollback, backup and recovery with validation, real-time load monitoring with alerting, security diagnostics and vulnerability assessments, 24/7 incident remediation with SLA and root-cause analysis, centralized logging with audit trails. Supports hybrid environments across cloud providers and on-premises datacenters.
- [Email Hosting](https://www.intesys.io/emailhosting): Hub page for two tiers -- Corporate (Zimbra/Carbonio) and Professional -- see the specific pages below for each.
- [Corporate Email (Zimbra/Carbonio)](https://www.intesys.io/emailhosting/corporate): Full enterprise collaboration suite -- email, shared calendar, contacts, tasks, file sharing, mobile sync, delegated mailboxes, shared folders, Global Address List, video conferencing, AI-powered spam and malware filtering, 2FA, custom SSL certificates. iOS/Android/Outlook sync via ActiveSync. Storage per mailbox: 2 GB to 300 GB, expandable on demand. InteSys-exclusive differentiators: own admin panel (provision mailboxes, domains, aliases, quotas, policies, reports), email logs API + self-service dashboard (deliveries, bounces, SPF/DKIM/DMARC results, antispam actions, SIEM export), antispam panel (quarantines, false-positive release, allow/deny lists, audit trail). Premium support: Brazilian team, certified Zimbra specialists, response SLA defined in contract.
- [Professional Email](https://www.intesys.io/emailhosting/professional): Lightweight, affordable email hosting. IMAP/POP/SMTP access with full-featured webmail, AI spam filtering, SSL and 2FA included, fast performance, automated domain onboarding, brandable webmail themes.
- [Email Hosting Plans & Pricing](https://www.intesys.io/emailhosting/plans): Corporate plans (Zimbra/Carbonio): Starter Business (2 GB/user), Business Plus (10 GB/user, most popular), Enterprise (25-300 GB/user, custom pricing) -- all include AI spam protection, 2FA, Let's Encrypt SSL, admin panel, logs API + dashboard, antispam panel, premium support. Professional plans: Basic Mail ($2.50/mo, 5 GB), Pro Mail ($4.50/mo, 15 GB, most popular), Business Lite ($6.50/mo, 30 GB). Storage expandable on demand.
- [Zimbra Hosting (Brazil)](https://www.intesys.io/emailhosting/zimbra): Managed Zimbra Collaboration / Carbonio CE in Tier 3 Brazilian datacenters (São Paulo, Porto Alegre), LGPD compliant. Includes shared calendar, global address list, tasks, files, ActiveSync, Zimlets, native Zimbra admin console, plus the InteSys-exclusive admin panel, logs API/dashboard, and antispam panel. Free assisted migration from Google Workspace, Microsoft 365, on-prem Zimbra, cPanel, GoDaddy, or any IMAP source. BRL billing, no FX exposure, plans from BRL 2.00/user/month. Protocols: ActiveSync, IMAP, IMAPS, POP3, POP3S, SMTP, Submission, HTTPS, CalDAV, CardDAV.
- [Email Migration Service](https://www.intesys.io/emailhosting/migracao): Free assisted email migration for corporate plans, zero downtime. Sources: Google Workspace, Microsoft 365, Exchange Online, on-prem Zimbra, cPanel/Roundcube, Plesk, GoDaddy, HostGator, Locaweb, UOL Host, Postfix/Dovecot, Exchange 2013+, any IMAP/POP3. Preserves folders, filters, labels, contacts, calendars, aliases, domain policies, Zimbra signatures and Briefcase files, and user preferences. Provisions DKIM/SPF/DMARC, coordinates DNS cutover. Typical timelines: up to 50 mailboxes in 3-5 business days, 50-200 in 1-2 weeks, 200-1000 in 2-4 weeks.
- [Zimbra Reseller Program](https://www.intesys.io/emailhosting/revenda): Partner program for providers, agencies and resellers offering Zimbra corporate email. Tiers: Silver (up to 200 mailboxes), Gold (200-1000, optional white-label from this tier), Platinum (1000+, white-label + dedicated account manager). Per-customer admin panel, dedicated support channel with differentiated SLA, free assisted migration for partner-referred customers. BRL invoicing; partner handles Tier 1 support, InteSys handles Tier 2/3.
- [Transactional Email API](https://www.intesys.io/transactional-email): SMTP relay and REST API for application-generated email, powered by the FrontEngine platform (https://app1.frontengine.net). High-deliverability with dedicated IPs and managed reputation. Real-time analytics (opens, clicks, bounces, complaints), webhook notifications (MessageSent, MessageDelayed, MessageDeliveryFailed, MessageHeld, MessageBounced, MessageLinkClicked, SendLimitApproaching, SendLimitExceeded, DomainDNSError). Unlimited sending domains, up to 15MB/message, 30-day delivery logs, free SSL, inbound email parsing, automatic suppression list management, Prometheus metrics. Plans: Starter (5,000 credits/mo, $45), Business (100,000 credits/mo, $190), Enterprise (250,000 credits/mo, $350), custom volume available. REST API authenticates via X-Server-API-Key header; endpoints include POST /api/v1/send/message, /send/raw, /messages/message, /messages/deliveries.
- [DevOps as a Service](https://www.intesys.io/devops-as-a-service): Infrastructure as Code (Terraform, Ansible, Helm), containerization (Docker, Kubernetes), observability (Prometheus, Grafana), CI/CD (GitLab CI, GitHub Actions), DevSecOps (code scanning, dependency audits, container hardening), HA architecture, DR planning, chaos engineering. Delivery pipeline: Develop (self-service tools, Git workflows) -> Build & Test (automated builds, security analysis, quality gates) -> Deploy & Operate (staging validation, canary deployments, rollback, monitoring). Includes dedicated dev/staging/production environments, a dedicated DevOps analyst, Brazilian and international datacenters, RBAC, Git repositories, CI/CD design and maintenance, centralized log management, full observability stack.
- [SSL Certificates](https://www.intesys.io/certificados-ssl): TLS certificates across five tiers -- Domain Validation (DV), Organization Validation (OV), Extended Validation (EV), Wildcard, Multi-Domain/UCC -- plus Code Signing, Code Signing EV, and S/MIME Personal. Products: EssentialSSL, Positive SSL, InstantSSL, InstantSSL Pro, PremiumSSL, EV SSL, Wildcard variants, Positive SSL Multi-Domain, UCC (a SAN certificate for Microsoft Exchange/Office Communications Server). Single-domain (DV/OV/EV) certificates cover both the bare domain and the www subdomain at no extra cost. Positive SSL and Positive SSL Wildcard are the most commonly ordered, recommended starting points. Maximum validity is capped by the CA/Browser Forum at 200 days as of March 2026 (declining further on a published schedule); multi-year plans are a subscription with reissuances included through the term, not a single long-lived certificate. Ordering today is quote-based via the contact form.

## Tools

- [Tools Overview](https://www.intesys.io/tools): Index of the free diagnostic tools below. No sign-up required, results processed securely and not stored.
- [Email Credentials Tester](https://www.intesys.io/tools/emailcredential): Tests email server authentication across 8 protocols (IMAP/POP3 STARTTLS, implicit-TLS, and plain variants, SMTP STARTTLS, SMTPS). No passwords stored during testing.
- [Email Authentication Validator](https://www.intesys.io/tools/emailauth): Validates SPF, DKIM, and DMARC records for any domain, with DKIM selector support and detailed error reporting and recommendations.
- [Email Send Test](https://www.intesys.io/tools/emailsend): Sends an actual test email via SMTP (STARTTLS port 587 or SMTPS port 465) to verify server configuration, with a professional HTML-formatted test message.
- [SSL Validator](https://www.intesys.io/tools/sslchecker): Validates SSL/TLS certificates, chain of trust, and cipher suites over HTTPS, SMTPS, IMAPS, POP3S, and STARTTLS. SSRF-protected against private/reserved IP ranges. Links back to the SSL Certificates product page for renewals/new orders.
- [Multi RBL Checker](https://www.intesys.io/tools/multirbl): Checks an IP address or hostname against 200+ DNS blacklists simultaneously, with Forward-Confirmed Reverse DNS (FCrDNS) verification, real-time streaming results via Server-Sent Events, and PDF report export.
- [ActiveSync Connection Test](https://www.intesys.io/tools/activesync): Tests Exchange ActiveSync (EAS 14.1) connectivity against Z-Push and Zimbra servers -- authentication, Provision handshake, FolderSync, and Sync commands -- and previews recent messages, contacts, and calendar items on successful auth. Credentials used only for the single request, never stored or logged.
- [EML / MIME Decoder](https://www.intesys.io/tools/emldecoder): Decodes raw email messages (paste MIME or upload a .eml file up to 5 MB), showing every decoded header (RFC 2047 encoded-word handling), plain-text body inline, HTML body as client-side-download-only, and attachment metadata. Nothing is stored server-side; content is parsed in memory and discarded after the response.
- [DMARC Aggregate Report Parser](https://www.intesys.io/tools/dmarcreport): Parses DMARC RUA aggregate reports (RFC 7489) from .xml/.xml.gz/.zip uploads or pasted XML -- report metadata, the published DMARC policy, aggregate statistics, and a per-record disposition/DKIM/SPF-alignment breakdown. Hardened with defusedxml (XXE-safe), 5 MB compressed / 25 MB decompressed caps. Nothing stored server-side.
- [DKIM Key Generator](https://www.intesys.io/tools/dkimgen): Generates a fresh RSA keypair (1024/2048/4096-bit, default 2048) for DKIM signing on a custom domain, returning the DNS TXT record and PEM public/private keys with one-click copy and download. Server-side generation via the `cryptography` library; the keypair is never written to disk or logged.

## Company

- [About](https://www.intesys.io/about): Founded 2005 in Porto Alegre, Brazil; evolved from infrastructure consultancy to full-service cloud provider serving hundreds of businesses across Latin America, Europe, and North America. 99.9% uptime SLA, 20+ years of experience, 500+ active clients. Datacenters in Brazil (headquarters, primary), Europe (GDPR-compliant), and North America.
- [Contact](https://www.intesys.io/contact): Contact form with product-specific routing (Cloud Servers, IaaS, Email Hosting Corporate/Professional, Transactional Email, Corporate Email, DevOps, SSL Certificates, Technical Support, Other).
- [Privacy Policy](https://www.intesys.io/privacy-policy): LGPD, GDPR, and CCPA compliant. Data retention: contact form 12 months, technical logs 30 days, analytics 6 months. Rights: access, correction, deletion, portability, objection, consent withdrawal, CCPA opt-out.
- [Terms of Service](https://www.intesys.io/terms-of-service): Governing law Brazil, courts of Porto Alegre. 99.9% uptime SLA target. Termination: 30 days written notice, 30-day data export window.
- [Cookie Policy](https://www.intesys.io/cookie-policy): GDPR/LGPD/CCPA compliant cookie consent banner with granular preferences across essential (CSRF, consent), functional (language, theme), analytics, and marketing categories.
- [Full Documentation](https://docs.intesys.io): Long-form product docs and how-to guides, in Portuguese (BR, default), English, and Spanish -- a separate site from this one, with its own llms.txt.

## Optional

- [IP Information](https://www.intesys.io/ip): Utility JSON endpoint returning the caller's client IP, Cloudflare metadata (country, ray_id, visitor_scheme), request headers (user agent, accept-language, accept-encoding, referer), and connection details.
- Legacy URLs that 301-redirect to the pages above (not distinct content): `/servidor-na-nuvem`, `/cloud`, `/cloudcomputing` -> `/vps`; `/infraestrutura-gerenciada` -> `/iaas`; `/devops-como-servico` -> `/devops-as-a-service`; `/ssl`, `/certificado-ssl`, `/ssl-certificates`, `/certificados-digitais` -> `/certificados-ssl`; `/zimbra` -> `/emailhosting/zimbra`; `/emailtransacional` -> `/transactional-email`; `/o-que-fazemos`, `/quem-somos`, `/parceiros`, `/clientes` -> `/about`.
- Site design: dark-first glass-morphism, primary blue (#2563eb), accent cyan (#0ea5e9), fonts Inter + JetBrains Mono.