What evidence do auditors commonly ask for on 06 Email content filtering (Excellent)?

Test messages carrying blocked attachment types and a known-bad link, with the gateway verdict for each; Email gateway policy listing approved attachment types and the action for all others; Malware scanning and URL analysis settings on the email gateway, including link rewriting or time-of-click checks; Quarantine and block reports showing filtered messages over a recent period.

What is the most common gap auditors find on 06?

Archive files and macro-enabled documents allowed through without inspection

ASD Strategies to Mitigate Cyber Security Incidents · Preventing Malware Delivery and Execution

`06` Email content filtering (Excellent)

Filter emails and their content. Only allow approved attachment types. Inspect content for malware. Analyse links.

Source: ASD Strategies to Mitigate Cyber Security Incidents, 06. The statement above is our statement of the clause, read from the published text and cited so you can check it against the official text, not the instrument verbatim. Open ASD Strategies to Mitigate Cyber Security Incidents in the compliance library.

artefacts

held by a system

at each review

moderate

to go live

Vulnerability scanner / patch tooling

where the evidence lives

teal = a system already holds it · olive = produced at each review. To go live: easy when half or more of the artefacts are already held by a system, moderate from a quarter to a half, hard below a quarter.

These are the artefacts auditors commonly ask for on this requirement, our guidance rather than text from the standard. Your assessor decides what is sufficient in your context, and asks for samples across the period when a report covers one.

system holds itEvidence a system already holds

Malware scanning and URL analysis settings on the email gateway, including link rewriting or time-of-click checks · Vulnerability scanner / patch tooling

periodic reviewEvidence produced at each review

Quarantine and block reports showing filtered messages over a recent period · Endpoint management (MDM / EDR)

governing documentDocuments that govern the control

Test messages carrying blocked attachment types and a known-bad link, with the gateway verdict for each · Policy repository / GRC workspace
Email gateway policy listing approved attachment types and the action for all others · Policy repository / GRC workspace

First move

Start with the 1 of 4 artefacts that already live in a system (Vulnerability scanner / patch tooling); keep the periodic reviews but log each one as a dated record with a named reviewer.

Common gaps auditors find

Archive files and macro-enabled documents allowed through without inspection
Link analysis absent, so phishing URLs reach inboxes unchecked
Internal email between mailboxes not filtered, allowing spread from a compromised account

Do this for your whole sheet

Paste the rows you run your controls from and get this mapping for every control at once, with the periodic-review ones flagged and a first move per row. No account for the first run.

Build my evidence sheet

05 Automated dynamic analysis of email and web content (Excellent) · 07 Web content filtering (Excellent)