I need to test an exchange mail system and would like to use linux, but am not certain where to start...
Basically, our Exchange setup routes mail via one of 3 routes, based upon the recipient domain, with headers being re-written to reflect one of 3 'from' addresses (again, a different one being displayed based upon the recipient).
In our setup internal mail is handled by exchange (duh!) and external mail either goes to a dedicated smarthost for one external domain or out over the internet for any other external domain.
I need to plug a system into the external interface of our system (which is still in the test lab) which can receive mail coming out of exchange, enabling us to make sure that it has been routed correctly, that the header has been re-written correctly and that it can be returned.
The plan is to spoof the external smarthost/external domains by pointing the outgoing exchange mail for each route at the linux system's ip address.
I have been told that a basic linux distro with sendmail, configured using webmin can do this?
If so, is there any specific distro to use?
Which mail program is best (I'm aware of postfix, sendmail and qmail but haven't really used any)?
Are there any guides or step-by-step guides on how to set something like this up?
Basically, our Exchange setup routes mail via one of 3 routes, based upon the recipient domain, with headers being re-written to reflect one of 3 'from' addresses (again, a different one being displayed based upon the recipient).
In our setup internal mail is handled by exchange (duh!) and external mail either goes to a dedicated smarthost for one external domain or out over the internet for any other external domain.
I need to plug a system into the external interface of our system (which is still in the test lab) which can receive mail coming out of exchange, enabling us to make sure that it has been routed correctly, that the header has been re-written correctly and that it can be returned.
The plan is to spoof the external smarthost/external domains by pointing the outgoing exchange mail for each route at the linux system's ip address.
I have been told that a basic linux distro with sendmail, configured using webmin can do this?
If so, is there any specific distro to use?
Which mail program is best (I'm aware of postfix, sendmail and qmail but haven't really used any)?
Are there any guides or step-by-step guides on how to set something like this up?
