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Re: [Sop.Tec.LinuxPPP] Open Relay...



Hola.

Probablemente tengas el mismo problema que yo tuve.

Toma éste correo: alguien%dominio.com@

El correo es válido, existen muchas formas de "formatear" un e-mail.

Sendmail 8.11 que según tiene el relay cerrado acepta éste tipo de
correos. Esto sucede en RH7.2/7.3. Puedes actualizar tu sendmail o
actualizar tu sistema. Las pruebas que llevé a cabo con RH8/9 solventan
éste problema.

Saludos.


> Hola a todos, me ha llegado el siguiente e-mail:
> ****************************************
>
> You are receiving this message because someone, who is having
> difficulty sending email to AOL, used AOL's open relay tester
> tool at postmaster.info.aol.com to notify you that this server
> is open to third party/free relaying and is blocked by AOL.
> Anyone using this server will be unable to send mail to AOL
> users until this server is closed to free relaying.
>
> If this server is intentionally open and you wish it never to be tested
> again, send us an email with the subject line "forever open,
> don't test", and put your IP address into the body of the email,
> to openrelay en aol net, and AOL will put you on the "forever open,
> don't test" list. ** Please keep in mind that your server will remain
> blocked until you disable free relaying and ask us to begin testing your
> server again.**
>
> Below, you will see output from our database indicating which
> tests we performed on your system, and the time at which the
> last test was performed.
>
> For example, if you see:
>
> mail from:<CloseYourOpenRelay en aol com>
> rcpt to:<CloseYourOpenRelay en aol com>
>
> it means we were able to send a piece of mail with a "from"
> address of "CloseYourOpenRelay en aol com" through your system,
> back to the email account "CloseYourOpenRelay en aol com".  (The
> email account "CloseYourOpenRelay en aol com doesn't exist -- it's
> greater than 16 characters -- but the fact that your server
> tried to deliver it indicates that you're open to free relaying.   We
> encourage you to use this email address as a test... you will
> receive bounced mail back from AOL's Mailer-Daemon if you are
> open to free relaying.)
>
> Here's your server data:
>
> Date: Wed May 28 14:04:00 2003
> mail from: <CloseYourOpenRelay en aol com>
> rcpt to: <CloseYourOpenRelay en aol com>
> rcpt to: <CloseYourOpenRelay%aol.com@63.110.191.49>
>
> The date/time stamp above indicates when the last test of your
> server occurred.  Our automated processes retest all servers
> every 24 hours.  If you close your relay within 24 hours of the
> last test, at the next test, your server's disposition in our
> database will change from "open" to "closed".  The change will
> then be picked up for the next system push to clear your entry
> from our block list.  System pushes occur several times within a
> 24 hour period, however, server retesting occurs only every 24
> hours.
>
> The AOL Postmaster Team
> ****************************************
>
> Tengo mi /etc/mail/access de la siguiente forma:
>
> # This file is automatically generated
> # Please put custom changes at the end
>
> # Put custom additions below (Do not change/remove this line).
>
> 10.10.11.21     RELAY
> 10.10.11.22     RELAY
> 10.10.11.23     RELAY
> 10.10.11.24     RELAY
> 10.10.11.71     RELAY
> #63.110.191.48  RELAY
> 10.10.10        RELAY
> #com    RELAY
> ipsgroup1.com   RELAY
> # No mails from Hotmail
> hotmail.com     REJECT
> # No mails from Yahoo
> yahoo.com       REJECT
> yahoo.com.mx    REJECT
>
> con el cual cree el hash (makemap hash /etc/mail/access <
> /etc/mail/access.db)
>
> y he reiniciado el server, desde el viernes, segun ellos cada 24 horas
> corren un escaneo, pero me siguen enviando esta notificación ya he
> checado con
>
> telnet relay-test.mail-abuse.org
>
> y me dio lo siguiente:
>
> ***********************
> Trying 204.152.187.123...
>
> Connected to cygnus.mail-abuse.org.
>
> Escape character is '^]'.
>
> Connecting to 63.110.191.49 ...
> <<< 220 ipsgroup1-eth1.com ESMTP Sendmail 8.10.2/8.10.2; Fri, 30 May
> 2003 09:45:50 -0700 <<< 220 ipsgroup1-eth1.com ESMTP Sendmail
> 8.10.2/8.10.2; Fri, 30 May 2003 09:45:50 -0700
>>>> HELO cygnus.mail-abuse.org
> <<< 250 ipsgroup1.com Hello cygnus.mail-abuse.org [204.152.187.123],
> pleased to meet you <<< 250 ipsgroup1.com Hello cygnus.mail-abuse.org
> [204.152.187.123], pleased to meet you :Relay test: #Quote test
>>>> mail from: <spamtest@>
> <<< 553 5.5.4 <spamtest@>... Domain name required
> <<< 553 5.5.4 <spamtest@>... Domain name required
>>>> rset
> <<< 250 2.0.0 Reset state
> <<< 250 2.0.0 Reset state
> :Relay test: #Test 1
>>>> mail from: <nobody en mail-abuse org>
> <<< 250 2.1.0 <nobody en mail-abuse org>... Sender ok
> <<< 250 2.1.0 <nobody en mail-abuse org>... Sender ok
>>>> rcpt to: <nobody en mail-abuse org>
> <<< 550 5.7.1 <nobody en mail-abuse org>... Relaying denied.  Please check
> your mail first. <<< 550 5.7.1 <nobody en mail-abuse org>... Relaying
> denied.  Please check your mail first.
>>>> rset
> <<< 250 2.0.0 Reset state
> <<< 250 2.0.0 Reset state
> :Relay test: #Test 2
>>>> mail from: <spamtest en maps1 pa vix com>
> <<< 501 5.1.8 <spamtest en maps1 pa vix com>... Domain of sender address
> spamtest en maps1 pa vix com does not exist <<< 501 5.1.8
> <spamtest en maps1 pa vix com>... Domain of sender address
> spamtest en maps1 pa vix com does not exist
>>>> rset
> <<< 250 2.0.0 Reset state
> <<< 250 2.0.0 Reset state
> :Relay test: #test 3
>>>> mail from: <spamtest@localhost>
> <<< 553 5.5.4 <spamtest@localhost>... Real domain name required
> <<< 553 5.5.4 <spamtest@localhost>... Real domain name required
>>>> rset
> <<< 250 2.0.0 Reset state
> <<< 250 2.0.0 Reset state
> :Relay test: #Test 4
>>>> mail from: <spamtest>
> <<< 553 5.5.4 <spamtest>... Domain name required
> <<< 553 5.5.4 <spamtest>... Domain name required
>>>> rset
> <<< 250 2.0.0 Reset state
> <<< 250 2.0.0 Reset state
> :Relay test: #Test 5
>>>> mail from: <>
> <<< 250 2.1.0 <>... Sender ok
> <<< 250 2.1.0 <>... Sender ok
>>>> rcpt to: <nobody en mail-abuse org>
> <<< 550 5.7.1 <nobody en mail-abuse org>... Relaying denied.  Please check
> your mail first. <<< 550 5.7.1 <nobody en mail-abuse org>... Relaying
> denied.  Please check your mail first.
>>>> rset
> <<< 250 2.0.0 Reset state
> <<< 250 2.0.0 Reset state
> :Relay test: #Test 6
>>>> mail from: <spamtest@>
> <<< 553 5.5.4 <spamtest@>... Domain name required
> <<< 553 5.5.4 <spamtest@>... Domain name required
>>>> rset
> <<< 250 2.0.0 Reset state
> <<< 250 2.0.0 Reset state
> :Relay test: #Test 7
>>>> mail from: <spamtest@[63.110.191.49]>
> <<< 250 2.1.0 <spamtest@[63.110.191.49]>... Sender ok
> <<< 250 2.1.0 <spamtest@[63.110.191.49]>... Sender ok
>>>> rcpt to: <nobody en mail-abuse org>
> <<< 550 5.7.1 <nobody en mail-abuse org>... Relaying denied.  Please check
> your mail first. <<< 550 5.7.1 <nobody en mail-abuse org>... Relaying
> denied.  Please check your mail first.
>>>> rset
> <<< 250 2.0.0 Reset state
> <<< 250 2.0.0 Reset state
> :Relay test: #Test 8
>>>> mail from: <spamtest@>
> <<< 553 5.5.4 <spamtest@>... Domain name required
> <<< 553 5.5.4 <spamtest@>... Domain name required
>>>> rset
> <<< 250 2.0.0 Reset state
> <<< 250 2.0.0 Reset state
> :Relay test: #Test 9
>>>> mail from: <spamtest@>
> <<< 553 5.5.4 <spamtest@>... Domain name required
> <<< 553 5.5.4 <spamtest@>... Domain name required
>>>> rset
> <<< 250 2.0.0 Reset state
> <<< 250 2.0.0 Reset state
> :Relay test: #Test 10
>>>> mail from: <spamtest@>
> <<< 553 5.5.4 <spamtest@>... Domain name required
> <<< 553 5.5.4 <spamtest@>... Domain name required
>>>> rset
> <<< 250 2.0.0 Reset state
> <<< 250 2.0.0 Reset state
> :Relay test: #Test 11
>>>> mail from: <spamtest@>
> <<< 553 5.5.4 <spamtest@>... Domain name required
> <<< 553 5.5.4 <spamtest@>... Domain name required
>>>> rset
> <<< 250 2.0.0 Reset state
> <<< 250 2.0.0 Reset state
> :Relay test: #Test 12
>>>> mail from: <spamtest@[63.110.191.49]>
> <<< 250 2.1.0 <spamtest@[63.110.191.49]>... Sender ok
> <<< 250 2.1.0 <spamtest@[63.110.191.49]>... Sender ok
>>>> rcpt to: <nobody en mail-abuse org@">
> <<< 553 5.0.0 <nobody en mail-abuse org@">... Unbalanced '"'
> <<< 553 5.0.0 <nobody en mail-abuse org@">... Unbalanced '"'
>>>> rset
> <<< 250 2.0.0 Reset state
> <<< 250 2.0.0 Reset state
> :Relay test: #Test 13
>>>> mail from: <spamtest@>
> <<< 553 5.5.4 <spamtest@>... Domain name required
> <<< 553 5.5.4 <spamtest@>... Domain name required
>>>> rset
> <<< 250 2.0.0 Reset state
> <<< 250 2.0.0 Reset state
> :Relay test: #Test 14
>>>> mail from: <spamtest@>
> <<< 553 5.5.4 <spamtest@>... Domain name required
> <<< 553 5.5.4 <spamtest@>... Domain name required
>>>> rset
> <<< 250 2.0.0 Reset state
> <<< 250 2.0.0 Reset state
> :Relay test: #Test 15
>>>> mail from: <spamtest@[63.110.191.49]>
> <<< 250 2.1.0 <spamtest@[63.110.191.49]>... Sender ok
> <<< 250 2.1.0 <spamtest@[63.110.191.49]>... Sender ok
>>>> rcpt to: <@:nobody en mail-abuse org>
> <<< 553 5.1.3 <@:nobody en mail-abuse org>... Colon illegal in host name
> part <<< 553 5.1.3 <@:nobody en mail-abuse org>... Colon illegal in host
> name part
>>>> rset
> <<< 250 2.0.0 Reset state
> <<< 250 2.0.0 Reset state
> :Relay test: #Test 16
>>>> mail from: <spamtest@>
> <<< 553 5.5.4 <spamtest@>... Domain name required
> <<< 553 5.5.4 <spamtest@>... Domain name required
>>>> rset
> <<< 250 2.0.0 Reset state
> <<< 250 2.0.0 Reset state
> :Relay test: #Test 17
>>>> mail from: <spamtest@[63.110.191.49]>
> <<< 250 2.1.0 <spamtest@[63.110.191.49]>... Sender ok
> <<< 250 2.1.0 <spamtest@[63.110.191.49]>... Sender ok
>>>> rcpt to: <mail-abuse.org!nobody>
> <<< 550 5.7.1 <mail-abuse.org!nobody>... Relaying denied.  Please check
> your mail first. <<< 550 5.7.1 <mail-abuse.org!nobody>... Relaying
> denied.  Please check your mail first.
>>>> rset
> <<< 250 2.0.0 Reset state
> <<< 250 2.0.0 Reset state
> :Relay test: #test 18
>>>> mail from: <spamtest@>
> <<< 553 5.5.4 <spamtest@>... Domain name required
> <<< 553 5.5.4 <spamtest@>... Domain name required
>>>> rset
> <<< 250 2.0.0 Reset state
> <<< 250 2.0.0 Reset state
> :Relay test: #test 19
>>>> mail from: <postmaster@>
> <<< 553 5.5.4 <postmaster@>... Domain name required
> <<< 553 5.5.4 <postmaster@>... Domain name required
>>>> rset
> <<< 250 2.0.0 Reset state
> <<< 250 2.0.0 Reset state
>>>> QUIT
> <<< 221 2.0.0 ipsgroup1.com closing connection
> <<< 221 2.0.0 ipsgroup1.com closing connection
> Tested host banner: 220 ipsgroup1-eth1.com ESMTP Sendmail 8.10.2/8.10.2;
> Fri, 30 May 2003 09:45:50 -0700 System appeared to reject relay attempts
> *********************************
>
>
> Por lo que veo que aparentemente esta bien, igual que en
> http://www.paladincorp.com.au/unix/spam/spamlart/
> me menciona que esta ok, ahora bien .... la pregunta de los 60 Mil
>
> 	Hay algo en el sendmail.cf que pueda modificar para no permitir el
> envio de e-mail con los datos ejemplos que me ponen estos batos que es
> mas grande de 16 caracteres?
>
> mail from:<CloseYourOpenRelay en aol com>
> rcpt to:<CloseYourOpenRelay en aol com>
>
>
>
>
>
> Espero sus comentarios ya que me traen juido con esta onda.
> Gracias por su ayuda.
>
> OrvUx
> Making the Hard...Soft with Linux ;)
>
>
>
> --
> Lista de soporte de LinuxPPP
> Dirección email: Linux en linuxppp com
> Dirección web: http://mail.linuxppp.com/mailman/listinfo/linux
> Reglas de la lista: http://linuxppp.net/reglas.html



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