Hello All,
Assume the following setup:
Client from xyz.com logins to Many_Companies.com, accesses their email
campaign software running on Many_Companies.com and sends out newsletters.
A short time later a client from def.com logins to Many_Companies.com,
accesses their email campaign software running on Many_Companies.com and
sends out newsletters.
They both access the same software just have user accounts that are
different on the same server.
Postfix uses sender_dependent_relayhost_maps to channel xyz.com messages
to interface eth0:1 and def.com messages to the the eth0:2 interface.
Those virtual interfaces are mapped to IP addresses that are registered
addresses for xyc.com and def.com respectively.
Here is the question:
Will the received from headers in those messages reflect an origination
IP address of Many_Companies.com's IP address or xyc.com and def.com IP
addresses respectively?
I need the setup to reflect origination emails only coming from the
respective IP addresses for xyz.com and def.com, NOT
Many_Companies.com's IP address.
Thank you.
