about spams

[Amaury Viera Hernández]

On 10/17/2012 09:19 AM, Avi Greenbury wrote:
> Amaury Viera Hernández wrote:
>> Yes, the email server is escuela.espnl.co.cu,
>> How I can get out of this black list(http://www.apews.org/)?
> Generally, by stopping your server sending so much spam. Are you the
> administrator for the server, how many users do you have on it?
>
Yes, i'm the administrator
> - Code injected into websites on that server. This is far and away the
>    most common
we do not have websites, but in the past, we had hosted a webmail
> - Misuse of a 'send this to a friend' page - these, generally, are
>    smarter than they used to be and so less succeptible to that.
> - Someone having obtained the username and password of an account
>    permitted to send mail (perhaps through a dictionary attack or
>    compromising a PC) and using that to send bulk mail.

>
> Which ones is most likely, and how to combat it, depends to a large
> degree on what your server is doing. Are there a large number of mail
> users on this mailserver? Does it also host websites? Do you have
> anything to prevent dictionary attacks? Are you able to easily extract
> a list of users ordered by the amount of outgoing mail sent?
we do not have many users, we have a tool to prevent the dictionary 
attacks. yes, i'm using the awstats tools, and i can extract a list of 
users ordered by the amount of outgoing mail sent
>


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