On 5/19/2016 11:46 AM, Gomes, Rich wrote: > > What I need is to have any IPs listed in the /etc/postfix/access file with a > directive of "OK" be allowed to send mail
Listed IPs are allowed to send mail where? To your local users? To any destination? Is there some reason you need a specific file name and format? > Any IPs attempting to send mail to this particular mail server that are not > listed in that file are denied access. Unlisted IPs are denied access to where? Can unlisted IPs send mail to your local users? Normally, internet-facing mail servers accept mail from anywhere to the local users, and only local machines can send to anywhere. This is the mynetworks parameter, which has a different format. See docs. Some private/internal mail servers may limit incoming mail to only specific peers. The listed peers may be subdivided into those authorized to send mail to only specific destinations (usually local) or to anywhere. This is handled by some combination of mynetworks and smtpd restrictions. The details depend on the exact requirements. So what are your requirements? -- Noel Jones