Postfix is the corporate standard so this has been a bit of a learning curve for me. I'd like to keep it pretty simple, so there must be a way to have the access file behave in the same way it does in Sendmail. Specifically, I would like to only allow those entries in the access file (with a directive of OK) allowed to send mail, if it is not in the file, it should get a Relaying denied message and be dropped.
Does anyone have any suggesstions? -----Original Message----- From: owner-postfix-us...@postfix.org [mailto:owner-postfix-us...@postfix.org] On Behalf Of Bill Cole Sent: Tuesday, May 17, 2016 3:09 PM To: Postfix users <postfix-users@postfix.org> Subject: Re: postfix ignoring access file? On 16 May 2016, at 18:44, Gomes, Rich wrote: > True, but I have always set up Sendmail that way, using the access > file like an allow list. > > > I would like postfix to be setup in a similar fashion Unlike Sendmail, Postfix does not have a single access map against which a diversity of SMTP parameters are checked. If you believe you need such an architecture, use Sendmail. Your initial approach of using $mynetworks was more appropriate and might have worked just fine except that you apparently have some configuration that you haven't mentioned and no one has guessed. For example, on my personal server I have 29 items in my smtpd_recipient_restrictions list including 8 check_*_access directives carefully ordered among the reject_* directives, allowing for extremely fine control. Most cases can't justify that sort of complexity but it seems like everyone has their own favorite Postfix tricks, including people who package it for various OS distributions. If you are used to Sendmail, you are very likely to project some Sendmail behaviors on similar features in Postfix incorrectly. The 72k-word postconf(5) man page may seem daunting and I can't recommend reading it from top to bottom, but it is very complete and MUCH easier to navigate than Sendmail's cf/README and every file in the cf/cf tree implementing every feature you find interesting. postconf(5) is always the first place to look when a setting isn't behaving as you expect. Since you seem to be new to Postfix you should probably also read some of the documentation from Postfix's "readme" directory in full: BASIC_CONFIGURATION_README STANDARD_CONFIGURATION_README SMTPD_ACCESS_README And for important tips on how to get help HERE efficiently, the last ~50 lines of the DEBUG_README file are critical. We don't know what version of Postfix you're running, whether you built from source or are using some OS packager's quirky variant, or what, if any, other non-default settings you have which don't do what you expect and might influence the issues you're having.
