Instead, the SMTP logs are still nearly as large. And when I opened up the log file for yesterday, it is nearly 100% hackers trying to log in with all sorts of fake usernames. I have 240,876 rows in that one day log file just line after line of hackers trying to get in.
So it's just line after line of things like
# ME-I0135: Authenticating User:svn1@URLWEBSITE.com using Authentication Provider Credentials failed (unknown user)
SMTP-IN 993D3E9361B446C8963F1F61747453DD.MAI 968 46.38.144.17 AUTH MQ== 535 Invalid Username or Password 34 6 svn1@URLWESITE.com
There is probably some way to rein this in. Any suggestions? It can't be good for my server heath to be deluged with this non-stop all day every day

Lisa