No from addresses in the mail log.

[seanstephens]

Hello Plesk gurus.

Recently I have noticed an increase in the amount of spam coming through the server. As I was looking through the maillog, I saw there were a while bunch of entries that have no from address such as:

from <#@[]>
from <>

etc, could these be entries from a mail form on the server or is there a way which I can find where they are coming from?

Thanks in advance.