![]() You may specify any number of domains or host names separated by commas, or you may provide a full path to a file containing similar entries. By default, this is all configured addresses on the machine as well as localhost within the local domain. In other words, when mail reaches the server destined for addresses in this field, it will deliver the mail to a local user, rather than forward it to another mail server. What domain to receive mail for This option accepts a list of domains and addresses to receive mail as its final destination. This option correlates to the myorigin Postfix directive. ![]() If your mail server will be accepting mail for a large number of users under a single domain name, you will most likely configure the domain name here, and create a domain-wide alias database to map user names to their respective local mail servers. Postfix defaults to using the host name of the server, but you most likely will want it to identify mail as coming from your domain name instead. Most Useful General Options What domain to use in outbound mail Here you may specify the domain or host name to use to identify the source on outgoing mail. The three options in this section are, in some installations, the only options that need to be altered to get Postfix running for both sending and receiving email. Unless otherwise stated, all of the options on this page correspond to directives in the main.cf file in the Postfix configuration directory. In many standard installations, it may be possible to start up a Postfix installation with just configuration of one or more of the three directives in the upper section. The upper section is labeled Most Useful General Options and the lower section Other General Options. The General Options page is divided into two parts. Postfix, keeping with its philosophy of simplicity, usually requires only a few configuration file changes to get a mail server running efficiently and securely. Specifically, most of the configuration options that impact all users and all messages are configured here. ![]() The General Options page configures a number of options regarding the general behavior of Postfix. 14 Postfix, Unsolicited Commercial Email and Access Controls. ![]()
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