Hi All,
Hope its going all well, we are facing a problem, in our Exchange daily logs, there is always so many logins with the user name '-' (hyphen), also in our spam filter outbound traffic daily report there are so many emails with same sender ID '-' what is it? in Exchange Logs it shows logins from the different different IPs of different countries. I cant sort it out is it a virus, spam or what??
Virgo