Zuckerberg
5acc8b3fca
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114 lines
3.4 KiB
Nix
114 lines
3.4 KiB
Nix
{ config, pkgs, lib, ... }:
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with builtins;
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let
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cfg = config.mailserver;
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domains = [
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"neet.space"
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"neet.dev"
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"neet.cloud"
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"runyan.org"
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"runyan.rocks"
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"thunderhex.com"
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"tar.ninja"
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"bsd.ninja"
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"bsd.rocks"
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];
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in
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{
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config = lib.mkIf cfg.enable {
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# kresd doesn't work with tailscale MagicDNS
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mailserver.localDnsResolver = false;
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services.resolved.enable = true;
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mailserver = {
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fqdn = "mail.neet.dev";
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dkimKeyBits = 2048;
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indexDir = "/var/lib/mailindex";
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enableManageSieve = true;
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fullTextSearch.enable = true;
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fullTextSearch.indexAttachments = true;
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fullTextSearch.memoryLimit = 500;
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inherit domains;
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loginAccounts = {
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"jeremy@runyan.org" = {
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hashedPasswordFile = "/run/agenix/hashed-email-pw";
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# catchall for all domains
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aliases = map (domain: "@${domain}") domains;
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};
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"cris@runyan.org" = {
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hashedPasswordFile = "/run/agenix/cris-hashed-email-pw";
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aliases = [ "chris@runyan.org" ];
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};
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"robot@runyan.org" = {
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aliases = [
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"no-reply@neet.dev"
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"robot@neet.dev"
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];
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sendOnly = true;
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hashedPasswordFile = "/run/agenix/hashed-robots-email-pw";
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};
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};
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rejectRecipients = [
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"george@runyan.org"
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"joslyn@runyan.org"
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"damon@runyan.org"
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"jonas@runyan.org"
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"simon@neet.dev"
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"ellen@runyan.org"
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];
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forwards = {
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"amazon@runyan.org" = [
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"jeremy@runyan.org"
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"cris@runyan.org"
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];
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};
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certificateScheme = "acme-nginx"; # use let's encrypt for certs
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};
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age.secrets.hashed-email-pw.file = ../../secrets/hashed-email-pw.age;
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age.secrets.cris-hashed-email-pw.file = ../../secrets/cris-hashed-email-pw.age;
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age.secrets.hashed-robots-email-pw.file = ../../secrets/hashed-robots-email-pw.age;
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# sendmail to use xxx@domain instead of xxx@mail.domain
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services.postfix.origin = "$mydomain";
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# relay sent mail through mailgun
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# https://www.howtoforge.com/community/threads/different-smtp-relays-for-different-domains-in-postfix.82711/#post-392620
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services.postfix.config = {
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smtp_sasl_auth_enable = "yes";
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smtp_sasl_security_options = "noanonymous";
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smtp_sasl_password_maps = "hash:/var/lib/postfix/conf/sasl_relay_passwd";
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smtp_use_tls = "yes";
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sender_dependent_relayhost_maps = "hash:/var/lib/postfix/conf/sender_relay";
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smtp_sender_dependent_authentication = "yes";
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};
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services.postfix.mapFiles.sender_relay =
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let
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relayHost = "[smtp.mailgun.org]:587";
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in
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pkgs.writeText "sender_relay"
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(concatStringsSep "\n" (map (domain: "@${domain} ${relayHost}") domains));
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services.postfix.mapFiles.sasl_relay_passwd = "/run/agenix/sasl_relay_passwd";
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age.secrets.sasl_relay_passwd.file = ../../secrets/sasl_relay_passwd.age;
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# webmail
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services.nginx.enable = true;
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services.roundcube = {
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enable = true;
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hostName = config.mailserver.fqdn;
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extraConfig = ''
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# starttls needed for authentication, so the fqdn required to match the certificate
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$config['smtp_server'] = "tls://${config.mailserver.fqdn}";
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$config['smtp_user'] = "%u";
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$config['smtp_pass'] = "%p";
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'';
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};
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# backups
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backup.group."email".paths = [
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config.mailserver.mailDirectory
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];
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};
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}
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