A suspicious email is only useful security intelligence when someone can report it and the organisation can act on it. The best email threat reporting tools make that process fast for employees, manageable for analysts and measurable for security leaders. A reporting button alone is not enough if reports arrive in an unmanaged mailbox, analysts cannot prioritise them, or confirmed threats remain in other users’ inboxes.
For UK organisations operating substantial Microsoft 365 estates, the right choice depends on the maturity of the phishing response workflow. The central question is not simply whether users can report phish. It is whether the organisation can train employees to recognise suspicious messages, triage reports at speed, remediate malicious mail and use real reporting data to reduce future risk.
What separates the best email threat reporting tools
Email reporting has two audiences with very different needs. Employees need a familiar Outlook action that takes seconds and does not require them to judge an email with complete certainty. Security teams need structured evidence, automation and a defensible record of what happened next.
The strongest tools preserve the original message and headers, identify likely malicious content, remove duplicate reports, enrich investigations with threat intelligence and route the remaining cases to the right analyst or managed service. They should also integrate with Microsoft 365 controls, so a confirmed phish can be searched for and removed from affected mailboxes rather than being treated as an isolated incident.
Reporting volume needs careful interpretation. A rise in reports may indicate improved employee participation, not a worsening security culture. Equally, a low volume can mean users are not seeing threats, but it can also mean they lack confidence in the process or have stopped using it because they receive no feedback. Good platforms turn these signals into human risk management data, not a simple count of button clicks.
1. Cofense Reporter and Cofense Triage
Cofense Reporter is designed to place phishing reporting directly into the employee workflow, including Outlook and Microsoft 365 environments. It gives users a straightforward way to submit suspicious emails while preserving the information analysts need for investigation. That matters when attackers use display-name impersonation, credential-harvesting links or business email compromise techniques that may not be reliably identified by gateway controls alone.
Cofense Triage adds the operational layer. It consolidates employee reports, helps teams remove duplicate submissions, supports automated analysis and prioritisation, and gives analysts a structured case-management process. Its strength is the connection between human detection and phishing triage: employees become an active detection layer, while the SOC is not overwhelmed by an unfiltered queue.
This is particularly suitable for organisations with a formal incident response function, high email volumes or a need to demonstrate how phishing reports are handled. It is also well suited to MSPs and VARs that need repeatable multi-customer processes. Wise Fish is a Cofense Authorised Distributor, supporting UK organisations and partners with platform implementation, enablement and managed phishing response.
The trade-off is that Cofense is best treated as an operational phishing defence capability, not merely as an Outlook add-in. It delivers most value when ownership, triage rules, escalation paths and remediation responsibilities are clearly defined.
2. Microsoft Report Message and Report Phishing
Microsoft’s native reporting add-ins are a practical starting point for organisations standardised on Microsoft 365. They allow users to submit suspicious messages from Outlook and can feed Microsoft’s wider security ecosystem. For teams already using Microsoft Defender for Office 365, this creates a familiar, low-friction reporting route without introducing another end-user interface.
The main advantage is simplicity. Licensing, tenant administration and user experience may be easier to manage where Microsoft security tooling is already established. Native reporting can also support users who need an immediate, recognisable action for junk, spam and suspected phishing.
However, Microsoft reporting alone may not provide the specialist workflow depth required by a busy security team. Organisations should check how reports are deduplicated, assigned, investigated and tracked to closure. They should also establish whether analysts can correlate reports with campaign activity and perform mailbox remediation efficiently. For lower reporting volumes, native capability may be sufficient. For regulated organisations or teams facing sustained phishing activity, it often needs to be supplemented with more focused triage and response processes.
3. Microsoft Defender for Office 365 investigation and response
Microsoft Defender for Office 365 is not primarily an employee reporting tool, but it is a significant part of the response chain for Microsoft-centric organisations. Its investigation, threat-hunting and email-remediation capabilities can help analysts examine reported messages, identify similar emails and take action across the estate.
This makes it a strong companion to an Outlook reporting mechanism. If a user identifies a credential-harvesting campaign that has bypassed filtering, the security team needs to determine who else received it, whether anyone clicked and whether malicious messages can be removed. Defender can form the control plane for much of that work.
Its limitation is that it does not solve the human reporting and triage problem by itself. Teams must still define how employee reports reach analysts, how false positives are managed and how feedback is returned to staff. The best outcome is often an integrated workflow: users report, a phishing-focused platform triages, and Microsoft 365 protection supports investigation and remediation.
4. KnowBe4 Phish Alert Button and PhishER
KnowBe4 combines security awareness training with employee reporting and a platform for processing reported messages. The Phish Alert Button gives users a familiar route to flag suspicious emails, while PhishER is intended to help security teams classify, prioritise and manage those submissions.
This approach can be attractive for organisations that place training at the centre of their phishing programme and want reporting participation connected to behavioural learning. It can also suit smaller security teams that need a more structured alternative to an inbox-based process.
Buyers should assess the practical workflow rather than assuming that training and reporting automatically produce better response. Consider how easily analysts can investigate a reported email, how intelligence feeds are used, whether response playbooks meet internal requirements and how confirmed malicious messages are remediated from Microsoft 365. Training data is valuable, but it should not replace the evidence generated by real attack reports.
5. Proofpoint PhishAlarm and incident response workflows
Proofpoint PhishAlarm provides an employee reporting mechanism for suspicious emails and can support organisations using the broader Proofpoint email security portfolio. For teams already invested in Proofpoint controls, this can create a coherent route from user report to investigation.
The appeal is platform alignment. Reported messages can be considered alongside the organisation’s existing email-security telemetry and policy controls, which can reduce context switching for analysts. It is a credible option where Proofpoint is the established email security standard and the security team is comfortable operating within that ecosystem.
As with every integrated option, the question is whether the response process works under pressure. Ask how duplicate reports are handled, whether analysts can distinguish user-reported campaigns from isolated queries, and how quickly confirmed threats can be removed from recipient mailboxes. Existing gateway investment should influence the decision, but it should not obscure gaps in incident handling.
6. Mimecast reporting capabilities
Mimecast offers reporting and awareness capabilities that may suit organisations already using Mimecast for secure email and collaboration. A familiar reporting action can help increase employee participation, while existing message-security telemetry may give analysts valuable context.
This is often a sensible choice for organisations seeking to consolidate suppliers. Yet consolidation is not automatically the best operational outcome. Security leaders should test the workflow against real scenarios, including a QR-code phishing email, a supplier impersonation attempt and a campaign reported by dozens of employees within minutes.
The assessment should cover the time from first report to analyst decision, the ability to identify all recipients and the time to remediate. Those operational measures are more meaningful than the presence of a reporting button alone.
7. Managed phishing reporting and triage services
For many organisations, the most effective toolset includes a managed service. This is particularly relevant where the internal SOC does not operate around the clock, the help desk is receiving inconsistent reports or specialist phishing analysis skills are limited. A managed phishing response service can monitor submitted emails, apply agreed playbooks, escalate genuine incidents and provide reporting on trends, campaigns and user behaviour.
The value is not simply outsourcing an alert queue. A capable service should improve decision quality and response consistency while giving internal teams enough visibility to retain governance. Before selecting one, define service hours, severity criteria, escalation contacts, remediation authority and the evidence required for audit and compliance purposes.
How to choose the right reporting model
A practical evaluation should follow the path a real email takes through the organisation. Can an employee report it from the Outlook client they actually use? Does the report retain headers and message content? Can the platform group 50 reports of the same campaign into one investigation? Can an analyst search for related messages and remove them from mailboxes? Finally, can the organisation use the result to improve filtering, simulations and user guidance?
For many UK enterprises, the strongest model combines a simple employee reporting experience with specialist phishing triage and Microsoft 365 remediation. That approach recognises a basic reality of email security: technology will miss some attacks, and trained people will spot threats that automated controls have allowed through. The difference lies in how quickly the organisation turns that report into protection for everyone else.