And just to make things a little more interesting, informal testing suggests that at least two AV products have trouble recognising and scanning bounced viral attachments. MIME boundary issues, perhaps. -- David Harley Threat Assessment Centre Manager Anti-Virus/Email Abuse Specialist NHS Information Authority This e-mail is confidential and privileged. If you are not the intended recipient please accept our apologies; please do not disclose, copy or distribute information in this e-mail or take any action in reliance on its contents: to do so is strictly prohibited and may be unlawful. Please inform us that this message has gone astray before deleting it. Thank you for your co-operation.