| The final hurdle before starting up qmail is to create a minimal set of configuration files. The qmail distribution includes a script called config that makes a set of configuration files that's usually nearly right. I suggest you run the config script, then look at the files to see what it did and fix the files up as needed. All of the configuration files are in /var/qmail/control. The ones you need to create include: - me
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The name of this host, e.g., mail.example.com. This provides the default to use for many other configuration files. - defaulthost
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The hostname to add to unqualified addresses in submitted mail. If your email addresses are of the form mailbox@example.com, this would contain example.com, so that mail to, say, fred is rewritten to fred@example.com. (Note that this rewriting happens only to locally submitted mail sent via qmail-inject, not to mail that arrives via SMTP.) - defaultdomain
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The domain to add to unqualified domains in submitted mail addresses, usually your base domain, such as example.com. This would rewrite fred@duluth to fred@duluth.example.com. (This rewriting also happens only in locally submitted mail.) - locals
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Domain names to be delivered locally, one per line. Mail to any domain listed in locals is delivered by treating the mailbox part as a local address. This usually contains the name of the host and the name of the domain used for user mailboxes, such as example.com and mail.example.com. Do not list virtual domains (domains hosted on this machine but with their own separate sets of mailboxes) in locals. I discuss them later. - rcpthosts
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Domains for which this host should accept mail via SMTP. This generally contains all of the domains in locals, as well as any virtual domains and any domains for which this host is a backup mail server. If rcpthosts does not exist, qmail accepts and delivers mail for any domain, a severe misconfiguration known as an "open relay," which will be hijacked by spammers. Be sure your rcpthosts file exists before starting qmail. If you haven't defined any virtual domains, just copy locals to rcpthosts.
There are over 20 more control files, but the rest can be left for later. |