Re: [exim] Drop failed authenticated users as quickly as I c…

Hi,

Look at Lena's block cracking. There is a section of what you need, i think.

https://github.com/Exim/exim/wiki/BlockCracking

Best Regards.










>-------- Оригинално писмо --------

>От: "Jorge" susclistas@???

>Относно: [exim] Drop failed authenticated users as quickly as I can

>До:

>Изпратено на: 20.05.2016 16:41


I want to implement a control on my mail server to drop failed authenticated

users as quickly as I can.



Actually, my configure file look like as:



...



acl_smtp_auth = smtp_auth

acl_smtp_rcpt = check_rcpt

acl_smtp_data = check_spam

...



begin acl



smtp_auth:

accept





check_rcpt:

accept authenticated = fixed_login

  accept  condition     = ${perl{check_deliver}{$domain}{$local_part}}

  accept  condition     = ${perl{checkvalias}{$domain}{$local_part}}

  deny    message = User unknown

check_spam:

warn

condition = ${if <{$message_size}{SPAM_CHK_MAXSIZE}{1}{0}}

message = X-Spam-Score-Int: $spam_score_int

    spam = nobody:true/defer_ok

deny

     condition = ${if >{$spam_score_int}{SPAM_SCOREINT_TO_DISCARD}{1}{0}}

     message   = Our mail system has determined your message to be SPAM.

     spam = nobody:true

accept





begin authenticators



fixed_login:

driver = plaintext

public_name = LOGIN

server_prompts = "Username:: : Password::"

server_condition = "${perl{checkuserpass}{$auth1}{$auth2}}"

server_set_id = $auth1







I thinks that where I made the check to authenticated at check_rcpt it's

wrong. It's this really wrong?



If it's wrong, where I may does the control? At smtp_auth (acl_smtp_auth)

section?



It may be this way?



smtp_auth:

drop !authenticated = fixed_login



accept





check_rcpt:

  accept  condition     = ${perl{check_deliver}{$domain}{$local_part}}

  accept  condition     = ${perl{checkvalias}{$domain}{$local_part}}

  deny    message = User unknown

An if this approach is correct, when drop at smtp_auth section, Exim

immediately exit? or it does the remaining controls?



Can anyone help me?



Thanks in advance.



Jorge Colaccini





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