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esmtpd(8) [osx man page]

ESMTPD(8)						      Double Precision, Inc.							 ESMTPD(8)

esmtpd - The Courier mail server mail server ESMTP daemon SYNOPSIS
esmtpd {start} esmtpd {stop} esmtpd {restart} esmtpd-msa {start} esmtpd-msa {stop} esmtpd-msa {restart} DESCRIPTION
The command "esmtpd start" runs couriertcpd in the background, listening on the SMTP port. couriertcpd will run courieresmtpd in response to connection requests. The command "esmtpd stop" stops the couriertcpd daemon, shutting down the ESMTP service. The command "esmtpd-msa start" starts the server on the message submission port, port 587. "esmtpd-msa stop" stops it. The difference between esmtpd and esmtpd-msa is that the latter is set up for additional processing as defined by RFC 2476 (mainly that the messages will have the Message-ID: and Date: headers added, by default). Normally, makesmtpaccess(8)[1] automatically runs "esmtpd restart", in order to reread the /etc/courier/smtpaccess.dat access file, so you don't have to do it manually, yourself. Similarly, makesmtpaccess-msa(8)[1] automatically runs esmtpd-msa restart FILES
/etc/courier/esmtpd This configuration file initializes various settings for courieresmtpd. /etc/courier/esmtpd-msa This configuration file initializes the settings for courieresmtpd when invoked by esmtpd-msa. Note that this file is used to override the settings /etc/courier/esmtpd. The command "esmtpd-msa start" first reads /etc/courier/esmtpd, then afterwards /etc/courier/esmtpd-msa. Any settings in esmtpd-msa override the corresponding settings in esmtpd SEE ALSO
couriertcpd(8)[2], makesmtpaccess(8)[1]. AUTHOR
Sam Varshavchik Author NOTES
1. makesmtpaccess(8) [set $man.base.url.for.relative.links]/makesmtpaccess.html 2. couriertcpd(8) [set $man.base.url.for.relative.links]/couriertcpd.html Courier Mail Server 08/30/2011 ESMTPD(8)

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MAKEHOSTEDDOMAINS(8)					      Double Precision, Inc.					      MAKEHOSTEDDOMAINS(8)

makehosteddomains - Build a database of hosted domains SYNOPSIS
makehosteddomains DESCRIPTION
makehosteddomains rebuilds the contents of the /etc/courier/hosteddomains.dat database from the contents of /etc/courier/hosteddomains. This can be either a file or a directory. If it's a directory, the contents of all the files in this directory are simply concatenated. The makehosteddomains script must be run in order for any changes to /etc/courier/hosteddomains to take effect. The function of /etc/courier/hosteddomains is very similar to the one of /etc/courier/locals. Both configuration files specify a list of domains that are considered to be local domains - domains whose mailboxes are stored locally. The difference is that domains listed in /etc/courier/locals are removed from addresses before their mailbox is looked up. For example, if the domain "" is listed in /etc/courier/locals, then the address <> is delivered to a local mailbox named "user". If this domain is listed, instead, in /etc/courier/hosteddomains, then the address <> is delivered to a local mailbox named "". Usually you would use /etc/courier/locals to specify domains that correspond to your local system accounts, that are looked up in your system's password database. The /etc/courier/hosteddomains file is usually used when you have database-based virtual domains, that are maintained via an LDAP or a MySQL server. The Courier mail server's LDAP and MySQL authentication modules will use the full E-mail address to query the LDAP or MySQL server for the location of the local mailbox that correspond to the E-mail address. The Courier mail server's authuserdb authentication module can also use full E-mail addresses. Contents of hosteddomains The file /etc/courier/hosteddomains simply contains a list of domains, one per line, for example: Each domain can optionally be followed by a single tab character, in order to specify an alias for a domain, for example:<TAB><TAB> First, we list the domain "" as a hosted domain. Then, we also list the domain "", which is an alias for The Courier mail server will take any address of the form <>, rewrite it as <>, and attempt to deliver the mail to a local mailbox for that name. The third entry does the same for ""; mail addressed to <> is delivered to the local mailbox <>. alias@hosteddomain This is a special local mail delivery rule for hosteddomain-listed domains. This rule allows the Courier mail server accept mail to any address@hosteddomain, where "hosteddomain" is a domain listed in the hosteddomains file, but there is no corresponding account for address@hosteddomain. To provide delivery instructions for any non-existing address in a hosteddomain-listed domain: 1) Create the local address alias@hosteddomain. For example, if the hosteddomains file contains "", create the local account This should be a normal account, with its own home directory, userid and groupid. 2) Create $HOME/.courier-default file in this account, containing the delivery instructions. See the dot-courier(5)[1] manual page for available delivery instructions. NOTE that must be a real account, not a mail alias. If you want to forward to another address, put forwarding instructions in the .courier-default file. However, can be a clone of another account (with the same home directory, userid, and groupid). "WILDCARD DNS" Wildcard DNS is supported for hosteddomains by placing a single period character before the domain name. For example, the hosted domain entry "" will cause the Courier mail server to accept mail for "". The Courier mail server will accept mail for <> and attempt to deliver it to the local mailbox <>, and if that fails then attempt to deliver the mail to the local mailbox <>, then finally <> Note There is a period after the '@' character. If you want all mail for "" to be delivered as though it were sent to "", you should define an alias for the domain, for example:<TAB> SEE ALSO
esmtpd(8)[2]. AUTHOR
Sam Varshavchik Author NOTES
1. dot-courier(5) [set $man.base.url.for.relative.links]/dot-courier.html 2. esmtpd(8) [set $man.base.url.for.relative.links]/esmtpd.html Courier Mail Server 08/30/2011 MAKEHOSTEDDOMAINS(8)
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