Collect sensitive documents through a secure upload portal.
Give clients, suppliers and external partners one clear route for uploading sensitive files. Your team keeps control of routing, access and evidence, while each submission is protected with AES-256 and My MX Data's patented quantum secure methodology.
Email is useful.
It is not a governed document intake system.
Attachments can become difficult to trace once they are forwarded, duplicated or separated from their original context. A secure upload service gives external parties one clear route and gives your team a more consistent record of receipt.
Three steps to share sensitive documents securely.
A secure portal should not force clients or suppliers through an unnecessary software rollout. The submission journey stays focused, while the receiving organisation controls what happens after the upload.
Open the secure upload link
The sender reaches a branded page with clear instructions. They do not need access to your internal systems or a general shared folder.
Upload files and add context
Documents, datasets, media and technical files can be submitted with a note, helping the receiving team understand the purpose of the upload.
Route to an authorised owner
The submission reaches the appropriate team or user through a controlled process, with relevant activity recorded for later review.
Give every submission a clear destination and owner.
A secure file upload is only useful when the document reaches the right people. Portals can be organised around teams, matters, projects or intake types, helping reduce manual forwarding and uncertainty over who is responsible.
Direct submissions to an appropriate team, workflow or authorised user according to the portal used.
Capture relevant sender information and keep it associated with the uploaded documents and activity record.
Submission notes remain connected to the file exchange instead of becoming separated in another email thread.
For wider external exchanges, see how MX supports controlled file sharing with clients.
Where a secure upload portal earns its place.
Use one controlled route wherever external parties need to send sensitive or unusually large files into the organisation.
Client and professional-services intake
Collect identity evidence, signed agreements, financial records and case documents without asking clients to attach sensitive material to email. The branded experience also helps the request feel legitimate and consistent.
See accountant file-sharing workflowsSupplier, engineering and project submissions
Receive drawings, datasets, media, specifications and other large operational files through an approved process, with ownership and submission context attached from the outset.
Review secure large file transferMake inbound document handling easier to govern and explain.
A secure-looking form is not enough. MX provides protection, controlled recipient access, expiry options and detailed activity records that can help facilitate GDPR, Data Protection Act and ISO 27001-aligned processes.
From external submission to authorised receipt, the process is controlled and recorded.
Files enter through the branded portal, receive AES-256 protection and the ASR methodology, and are made available through the configured business workflow.
Purpose and minimisation
Expiry and access controls can support a proportionate approach to collecting and retaining personal data.
Accountable UK handling
Data-location options and structured records can contribute to clearer governance around inbound files.
Information security controls
Encryption, access management and logging can support evidence for an information security management system.
Traceable receipt
Activity records help teams answer who submitted, received or accessed a document and when.
Consistent intake
A defined portal route can reduce fragmented attachment handling and unapproved external services.
Explore how MX can support GDPR-aligned file exchange across the wider organisation.
Reduce the administration around collecting files.
A consistent secure file upload service helps teams spend less time checking fragmented inboxes and more time progressing the work the documents support.
PROCESSES TO REDUCE
CONTROLS TO INTRODUCE
Continue exploring
Watch a secure document upload from submission to receipt.
See how an external user submits a file through a branded portal and how the receiving team gains a controlled, recorded handoff.
2:25 · Product walkthrough
What organisations ask before opening a secure upload portal.
These answers cover security, usability, governance and rollout considerations for external document intake.
Browse all FAQsEmail remains useful for ordinary communication, but sensitive document collection can become difficult to govern when attachments are forwarded, duplicated, stored in several inboxes or separated from the message that explains them. A secure upload portal creates one defined route for inbound files and gives the receiving organisation clearer ownership of the process.
With MX, the sender uses a branded secure upload link rather than receiving access to an internal shared folder. The submission is protected as it enters the service, associated with relevant sender details and routed to an authorised business user or team. Activity around the exchange can then be recorded for later review.
- Control: one approved route instead of several informal channels.
- Traceability: evidence of submission, receipt and relevant access events.
- Retention: expiry and removal settings can reflect the purpose of the exchange.
This does not remove the need for secure endpoints, staff training or a documented retention policy. The NCSC cloud security principles provide useful context for assessing data protection, identity, audit information and secure service use. MX's wider feature set explains the controls available around each exchange.
Create a secure front door for external documents.
Test a branded secure file upload workflow with your own users, document types and routing requirements.