# SecuraWall MailFlow > Cloud Secure Email Gateway and Backup MX services operated by Doz Teknoloji. Keep existing mailboxes while protecting incoming email or temporarily queuing accepted email during receiving-server outages. Canonical website: https://www.securawall.com/ Customer portal: https://gate.securawall.com/ Language: English. Last reviewed: 30 October 2026. Choose one base service per domain. Email Security includes Backup MX continuity; standalone Backup MX provides secondary outage queuing without content scanning or personal quarantine. Neither base service provides hosted mailboxes, outage webmail or an archive of delivered messages. SMTP Relay is one optional monthly subscription per customer account. It covers every domain in that account with an active Package 1 or Package 2. A domain without an active base package cannot send. No separate relay subscription is needed per domain. Approval, authorized credentials, TLS, sender authentication and quotas apply. Base packages are billed per domain per calendar month. SMTP Relay is billed once per customer account per month. Renewals are manual. Prices and service limits come from the live Gate catalog; checkout confirms the payable amount, currency and service period. Do not treat previously quoted prices as permanent. Queue lifetime is distinct from quarantine retention; encoded attachments and headers count toward message-size limits. Storage is finite and shared. Base services activate after payment and required setup. SMTP Relay requires administrator approval, usually within 45 minutes. DNS and receiving-server settings affect when mail starts flowing. Security checks depend on enabled policies, scanner readiness, supported formats and resource limits. Destination SMTP acceptance is not proof of inbox placement. This file is a concise discovery guide to retained public pages and current terms. Account actions and purchases take place in the customer portal. ## Services - [Compare services](https://www.securawall.com/compare): Side-by-side features, quarantine connectors, base-package scope and account-wide relay billing. - [Home](https://www.securawall.com/): Email protection and continuity overview. - [Email Security](https://www.securawall.com/packages/email-protection): Incoming Cloud Secure Email Gateway checks, personal quarantine and Backup MX included. Quarantine users can be managed with Manual setup, CSV Import, or Connectors: Google Workspace, Active Directory (AD), LDAP, OpenLDAP, Zimbra API and Carbonio API. - [Backup MX](https://www.securawall.com/packages/backup-mx): Secondary MX, standby scope, temporary outage queues and delivery retries. - [SMTP Relay](https://www.securawall.com/addons/smtp-relay): One account-wide subscription for domains with an active base package. - [Pricing](https://www.securawall.com/pricing): Domain-based base packages, account-based relay, current prices, limits and purchase conditions. - [Why SecuraWall?](https://www.securawall.com/why-securawall): Business benefits and cloud versus on-premises gateway responsibilities. - [Live public catalog](https://www.securawall.com/api/catalog): Current machine-readable prices, product-specific billing units, service limits and capability scope. An unavailable response is not a current offer confirmation. ## Optional - [Privacy and cookies](https://www.securawall.com/legal/privacy-cookie-policy): Published privacy and cookie information. - [KVKK privacy notice](https://www.securawall.com/legal/kvkk-privacy-notice): Published personal-data notice. - [Terms of use](https://www.securawall.com/legal/terms-of-use-disclaimer): Published service terms and responsibilities. - [Service and confidentiality](https://www.securawall.com/legal/service-confidentiality-commitment): Published service and confidentiality conditions.