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https://gitlab.com/simple-nixos-mailserver/nixos-mailserver.git
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88 lines
2.9 KiB
Nix
88 lines
2.9 KiB
Nix
# nixos-mailserver: a simple mail server
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# Copyright (C) 2016-2017 Robin Raymond
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>
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{ mail_dir, domain, valiases }:
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let
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# valiasToString :: { from = "..."; to = "..." } -> String
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valiasToString = x: "${x.from}@${domain} ${x.to}@${domain}\n";
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# valiases_postfix :: [ String ]
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valiases_postfix = map valiasToString valiases;
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# concatString :: [ String ] -> String
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concatString = l: if l == []
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then ""
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else (builtins.head l) + (concatString (builtins.tail l));
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# valiases_file :: Path
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valiases_file = builtins.toFile "valias" (concatString valiases_postfix);
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# vhosts_file :: Path
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vhosts_file = builtins.toFile "vhosts" domain;
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in
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{
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enable = true;
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networksStyle = "host";
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mapFiles."valias" = valiases_file;
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# mapFiles."vaccounts" = vaccounts_file;
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# sslCert = "/etc/nixos/cert/${cert_file}";
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# sslKey = "/etc/nixos/cert/${key_file}";
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extraConfig =
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''
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# Extra Config
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smtpd_banner = $myhostname ESMTP NO UCE
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smtpd_tls_auth_only = yes
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disable_vrfy_command = yes
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message_size_limit = 20971520
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milter_rcpt_macros = i {rcpt_addr}
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# virtual mail system
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virtual_uid_maps = static:5000
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virtual_gid_maps = static:5000
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virtual_mailbox_base = ${mail_dir}
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virtual_mailbox_domains = ${vhosts_file}
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virtual_alias_maps = hash:/var/lib/postfix/conf/valias
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virtual_transport = lmtp:unix:private/dovecot-lmtp
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# sasl with dovecot
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smtpd_sasl_type = dovecot
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smtpd_sasl_path = private/auth
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smtpd_sasl_auth_enable = yes
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smtpd_relay_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination
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'';
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extraMasterConf =
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''
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# Extra Config
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#submission inet n - n - - smtpd
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# -o smtpd_tls_security_level=encrypt
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# -o smtpd_sasl_auth_enable=yes
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# -o smtpd_sasl_type=dovecot
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# -o smtpd_sasl_path=private/auth
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# -o smtpd_sasl_security_options=noanonymous
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# -o smtpd_sasl_local_domain=$myhostname
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# -o smtpd_client_restrictions=permit_sasl_authenticated,reject
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# -o smtpd_sender_login_maps=hash:/etc/postfix/virtual
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# -o smtpd_sender_restrictions=reject_sender_login_mismatch
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# -o smtpd_recipient_restrictions=reject_non_fqdn_recipient,reject_unknown_recipient_domain,permit_sasl_authenticated,reject
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'';
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}
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