[CentOS] Help with a sun cobalt with sendmail and centos with postfix

Bill Campbell centos at celestial.com
Fri Oct 24 20:14:39 UTC 2008

Have you looked at the BlueQuartz project?  It is specifically
for the Cobalts, and I think is CentOS based.


On Fri, Oct 24, 2008, Erick Perez wrote:
>I have a customer with a sun cobalt running Sendmail 8.10.2/8.10.2 and
>we are phasing out the sun cube due to some limitations. So we have
>installed a new centos 5.x server.
>the format of our current emails are username at domain.com and the new
>format will be name.lastname at domain.com. We have 1600 accounts.
>Both server are in the LAN.
>The MX record that the world sees, point to our current AV/AntiSpam
>appliance, then our AV appliance forwards to the mail server (its a
>trendmicro IMSS)
>The AV appliance lets me define rules that emails for
>username at domain.com should be sent to the mailserver with the cube,
>and it also let me define a rule for name.lastname at domain.com to be
>sent to the centos machine, so I have covered the "from internet"
>inbound email issue.
>going out to the internet, both servers can send emails perfectly.
>Since both servers will "answer" to the same domain, i need some
>guidance as to how to
>1- If user hosted on the Sun sendmail Cube sends emails to
>name.lastname at domain.com, make the Cube forward/send the email to the
>Centos machine.
>2- If user hosted in centos, sends email to username at domain.com, make
>the POSTFIX forward/send the email to the Cube machine.
>Due to internal regulations i must say that:
>1- users cannot be moved all at once.
>2- centos machine must use postfix - not sendmail. I can however,
>install sendmail on centos and make it listen in another port other
>than 25 if some solution arises that needs sendmail in both sides.
>Anyways, any guidance as to how to solve this mess is welcomed!!!!
>Erick Perez
>Panama Sistemas
>Integradores de Telefonia IP y Soluciones Para Centros de Datos
>Panama, Republica de Panama
>Cel Panama. +(507) 6694-4780
>CentOS mailing list
>CentOS at centos.org

INTERNET:   bill at celestial.com  Bill Campbell; Celestial Software LLC
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