Morning All,
Apologies if this is trivial but I can't see it documented anywhere
(although a few possible hints). I don't think this should be an odd
requirement but who knows.
so: group of cloud machines all running various parts of an application
for us. lets call them server0 - server99.cloud.com. All mail goes via a
Postfix MTA mta.cloud.com. Now, all these servers should be able to send
email to us internally @example.com.
Except for some servers, say email0 and email1.cloud.com, which send
email out to customers, so need to relay everywhere
And chuck in a SAN san.cloud.com that needs to email its support address
for failed disks etc: supp...@sanvendor.com
I can;t figure this out. I can see some restrictions based on sender
address or recipient address but thats too refined. Possibly we can do
this with my_networks and access lists but not clear. Basically, I need
to get email from everything but only specific servers should be able to
send email to domains outside our remit.
Any pointers to what I'm missing would be massively appreciated.
Stu