What CAN-SPAM requires#
CAN-SPAM requires accurate headers, a physical address, and honoring opt-outs within 10 business days.
What email attachment and link security is#
Attachment and link security covers scanning files and URLs in inbound mail (sandboxing, detonation, URL rewriting and time-of-click checks) and safe handling policies for outbound content.
Why it matters#
Malicious attachments and links remain the main payload delivery method for ransomware and credential theft.
How email attachment and link security supports CAN-SPAM compliance#
Regulators and recipients need to identify who sent a message and trust that opt-out mechanisms work. Email attachment and link security contributes by malicious attachments and links remain the main payload delivery method for ransomware and credential theft.
Implementation steps#
- Block executable and macro-enabled attachment types at the gateway.
- Enable URL rewriting with time-of-click reputation checks.
- Sandbox unknown attachments before delivery.
- For outbound, prefer links to authenticated portals over attachments for sensitive files.
Frequently asked questions#
Are PDF attachments safe?
Mostly, but PDFs can carry scripts and phishing links. Sandboxing and link rewriting still apply.