Hi everybody,
I'm actually configuring our new mail server Exchange 2007. It's a migration from Postfix/Cyrus to Exchange 2007. We plan to migrate some users at a time and we need to keep Postfix as a relay for the users who are migrated so postfix is used as a relay for the migrated users and as the main server for the others. Emails will follow those directions : From internet ---> Barracuda anti spam Appliance ---> Postfix. The server will understand if it's necessary to relay the email to the Exchange server . migrated users ---> Exchange 2007 ---> Internet users ---> Postfix ---> Internet users ---> Postfix ---> Exchange 2007 ---> migrated users migrated users ---> Exchnage 2007 --> Postfix --> users I made some modifications in the Postfix configuration. /etc/postfix/main.cf : #mydestination = localhost, localhost.test.com, test.com, localhost.testing.com, testing.com mydestination = localhost, localhost.test.com, localhost.testing.com #relay_domains = fr.design.test.com relay_domains = fr.design.test.com, test.com, testing.com /etc/postfix/transport : # MAILBOX MIGRATED te...@test.com smtp:srvexch.test.com te...@test.com smtp:srvexch.test.com #MUST BE THE LAST LINE test.com local testing.com local On the Exchange 2007 side, I created a receive connector with a specific IP defined to receive mail from (the Postfix server), a send connector to send emails to the Postfix users (address spaces *.test.com, *.testing.com & use of the MX record to find the Postfix server) and a send connector to send emails outside of the organization directly to internet (address space *). But I encounter the problem of authentication. It seems that I need to authenticate Postfix to Exchange 2007 for the migrated users to receive an email and I don't know what to do to make it run smoothly. /etc/postfix # cat /var/log/mail | grep test1 Apr 21 12:02:34 everest postfix/smtp[27036]: C33675832B: to=<te...@test.com>, relay= srvexch.test.com [192.168.145.99], delay=48, status=bounced (host srvexch.test.com [192.168.145.99] said: 530 5.7.1 Client was not authenticated (in reply to MAIL FROM command)) I guess I need to specify in Exchange 2007 the security mechanisms to use in the receive connector and I want to use TLS. First of all, do you think it's enough as I don't want that a sniffer can read emails ? And what should I configure in Postfix to use TLS and allow Postfix to discuss with Exchange ? I hope I was enough clear on what I'm trying to do. Thank you for your help.
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