Mailock is a secure email (outbound email security) and delivery-evidence solution that helps organisations send encrypted messages and files via standard email while recording key delivery and access events for governance and compliance use cases. Mailock sits in the secure communications category, supporting teams that need to exchange sensitive or regulated information with customers, clients, patients, or partners without moving them into a separate portal-first workflow. Typical users include compliance, risk, customer communications, IT, and service teams in regulated and privacy-sensitive sectors such as financial services, insurance, legal, healthcare, and utilities. Organisations use Mailock to protect information in transit and to control access to message content and attachments after sending. It supports use cases such as sending statements and disclosures, claims and policy documents, client instructions and identifiers, invoices and contracts, case files, and other communications where confidentiality, recipient assurance, and evidence of delivery or access may be required for oversight. Mailock is also used to improve auditability of email-based delivery by capturing records across the message lifecycle (for example, dispatch, delivery to inbox, and access to secured content), which can be referenced when delivery is later queried. Key capabilities and value propositions include: Encryption and access control: Encrypts email content and attachments, with configurable access policies (such as time limits or withdrawal of access) to manage post-send exposure. Recipient verification options: Provides configurable identity or recipient-assurance steps (for example, knowledge-based challenges) when higher assurance is needed. Delivery and access records: Creates a tracked record of delivery lifecycle events and recipient interaction to support internal controls, audit, and dispute handling. Workflow and deployment options: Supports sending from common email environments (including Microsoft Outlook via add-in) and web-based sending for users who do not use Outlook. Administration and governance: Offers organisational management features such as policy controls, user administration, and reporting to help standardise secure delivery practices across teams.