Attachments of any kind in your email are scanned, and any archives as attachments, such as .zip files, are unpacked and the contents are scanned.
You will receive a warning, and you will ALSO receive the infected email. It will contain an additional header line:
• X-AMaViS-Alert: INFECTED, message contains virus:
Exception: We automatically reject *any* email that claims to be from admin@dslr.net or management@dslr.net... because it's obviously spoofed.
We also reject emails with spoofed mail headers -- they're always spam.