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# Email server configuration
# Copyright (C) 2022 Nguyễn Gia Phong
#
# This file is part of loang configuration.
#
# Loang configuration is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published
# by the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Loang configuration is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Affero General Public License for more details.
#
# You should have received a copy of the GNU Affero General Public License
# along with loang configuration. If not, see <https://www.gnu.org/licenses/>.
{ config, ... }:
let
certDir = config.security.acme.certs.${domain}.directory;
domain = config.networking.domain;
in {
networking.firewall.allowedTCPPorts = [
25 # SMTP-MTA
110 # POP3
465 # SMTP-MSA
993 # IMAPS
];
services = {
dovecot2 = {
enable = true;
sslServerCert = "${certDir}/cert.pem";
sslServerKey = "${certDir}/key.pem";
sslCACert = "${certDir}/chain.pem";
};
postfix = {
enable = true;
enableSubmissions = true;
domain = domain;
hostname = domain;
submissionsOptions = {
cleanup_service_name = "ascleanup";
milter_macro_daemon_name = "ORIGINATING";
smtpd_client_restrictions = "permit_sasl_authenticated,reject";
smtpd_sasl_auth_enable = "yes";
smtpd_sasl_local_domain = domain;
smtpd_sasl_path = "private/auth";
smtpd_sasl_security_options = "noanonymous";
smtpd_sasl_type = "dovecot";
smtpd_tls_security_level = "encrypt";
};
sslCert = "${certDir}/cert.pem";
sslKey = "${certDir}/key.pem"; };
};
}
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