Erick Perez a écrit : > Hi, > 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. > > However, > 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. > for the postfix side, use transport_maps: username at domain.com relay:[remote.host.example] (use the brakets to avoid MX lookups). > 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!!!! > > Thanks, >