deoren:
The question I had would have been better phrased as, Is there a way to
limit which clients can claim to be from your domain(s) when sending mail?
After doing some additional digging it looks like Envelope sender
address authorization is what I'm looking for?
I was reading through Linux Email and it has an example policy where only
clients from your networks are allowed to use your domain in the sender
address:
smtpd_sender_restrictions =
check_sender_access hash:/etc/postfix/sender_access
# /etc/postfix/sender_access
example.com permit_mynetworks,
deoren:
permit_mynetworks, REJECT Unauthorized use of domain name
Where does the Postfix documentation promise that you can do this?
Wietse
On November 22, 2014 10:22:12 AM CST, wie...@porcupine.org wrote:
deoren:
permit_mynetworks, REJECT Unauthorized use of domain name
Where does the Postfix documentation promise that you can do this?
Wietse
Thanks for the reply. I know you are a busy guy and I appreciate the direct
deoren:
Is there a way to accomplish what the Linux Email book mentions?
Basically restricting use of your domain to your clients/backup
MX and using a custom response or log message to indicate what
rule blocked offenders?
/etc/postfix/main.cf:
smtpd_client_restrictions =
On 11/22/2014 6:03 PM, Wietse Venema wrote:
deoren:
Is there a way to accomplish what the Linux Email book mentions?
Basically restricting use of your domain to your clients/backup
MX and using a custom response or log message to indicate what
rule blocked offenders?
/etc/postfix/main.cf:
