Is it posible for Zyxel Anti Spam to strip out the body of an email?

Chris

I have three cases where we receive an email from a particular external email account - but the body of the email is missing.
The clients email provider blames our Anti Virus / Spam?  Yet all we do is "Forward with tag" for all anti spam emails.  And these "blank" emails have no such tags in their headers?

Johan

Could you temporarily disable the anti-spam to check if the issue disappears? Then we can confirm if it is the Anti-Spam function that causes it or not & proceed from there.

CHS

Anti-Spam function seems not support for encrypted mail.

Zyxel_Charlie

Thanks @Johan
Hello Chris,
Please do the test disable the anti-spam to check if the issue disappears? so we can know is the Anti-Spam that causes this issue or not.
Charlie