One of our customers has lots of SAP Systems which are sending mails from non-existing sender-addresses.
Our customer has no quick way to correct his mailsystem.
These mails are not accepted from postfix with errormessage:
Code: Select all
NOQUEUE: reject: RCPT from mailserver.non-existant.customer.domain.com [IP Address]: 450 4.1.8 <none-existing sender-address>: Sender address rejected: Domain not found;
Could I add a line to /etc/postfix/sender_access like below ?
Code: Select all
#
*.nonexistant.customer.domain.com OK
#