email: email is semi functional, can send but it doesnot save to sent items

Unsure about recieve

applications/email.nix

@@ -0,0 +1,169 @@
+{ config, pkgs, lib, ...}: with lib;
+  let
+    cfg = config.services.skynet_email;
+  in {
+
+  imports = [
+    ./dns.nix
+  ];
+
+  /*
+  backups = [
+    "/var/vmail"
+    "/var/dkim"
+  ];
+  */
+
+  options.services.skynet_email = {
+    # options that need to be passed in to make this work
+
+    enable = mkEnableOption "Skynet Email";
+
+    host = {
+      ip = mkOption {
+        type = types.str;
+      };
+
+      name = mkOption {
+        type = types.str;
+      };
+    };
+
+    domain = mkOption {
+      type = types.str;
+      default = "ulcompsoc.ie";
+      description = lib.mdDoc "domaino";
+    };
+
+    sub = mkOption {
+      type = types.str;
+      default = "mail";
+      description = lib.mdDoc "mailserver subdomain";
+    };
+
+    ldap = {
+      hosts = mkOption {
+        type = types.listOf types.str;
+        default = [
+          "ldaps://sso.skynet.ie"
+        ];
+        description = lib.mdDoc "ldap domains";
+      };
+
+      base = mkOption {
+        type = types.str;
+        default = "dc=skynet,dc=ie";
+        description = lib.mdDoc "where to find users";
+      };
+
+      searchBase = mkOption {
+        type = types.str;
+        default = "ou=users,${cfg.ldap.base}";
+        description = lib.mdDoc "where to find users";
+      };
+
+      bind_dn = mkOption {
+        type = types.str;
+        default = "cn=admin,${cfg.ldap.base}";
+        description = lib.mdDoc "where to find users";
+      };
+
+    };
+
+  };
+
+  config = mkIf cfg.enable {
+
+    age.secrets.ldap_pw.file = ../secrets/ldap/pw.age;
+
+    # set up dns record for it
+    skynet_dns.records.external = [
+      # basic one
+      "mail       A ${cfg.host.ip}"
+
+      "${cfg.domain}  MX 10   ${cfg.sub}.${cfg.domain}"
+
+      # reverse pointer
+      "${builtins.substring 9 3 cfg.host.ip}.99.1.193.in-addr.arpa IN PTR ${cfg.sub}.${cfg.domain}"
+
+       # SPF record
+      "${cfg.domain} TXT v=spf1 a:${cfg.sub}.${cfg.domain} -all"
+
+      # DKIM
+      #"mail._domainkey 10800 TXT  v=DKIM1; p=<really-long-key>"
+
+      # DMARC
+      "_dmarc TXT v=DMARC1; p=none"
+    ];
+
+    mailserver = {
+      enable = true;
+      fqdn = "${cfg.sub}.${cfg.domain}";
+      domains = [
+        cfg.domain
+      ];
+
+      #hierarchySeparator = "/";
+
+      # 100MB max size
+      messageSizeLimit = 100000000;
+
+      #localDnsResolver = false;
+
+      ldap = {
+        enable = true;
+        uris = cfg.ldap.hosts;
+        bind = {
+          dn = cfg.ldap.bind_dn;
+          passwordFile = config.age.secrets.ldap_pw.path;
+        };
+        searchBase = cfg.ldap.searchBase;
+        searchScope = "sub";
+
+
+        dovecot = {
+          #userAttrs = "uidNumber=uid,gidNumber=gid,skMail=mail";
+          # use the set email account
+          #userFilter = "(&(memberOf=cn=skynet-users,ou=groups,${cfg.ldap.base}))(uid=%n))";
+          #userFilter = "(&(objectClass=posixAccount)(uid=%u))";
+          userFilter = "(uid=%n)";
+
+          # "fix" until userAttrs is fixed
+          passAttrs = ''uid=user,userPassword=password
+           user_attrs = uidNumber=uid,gidNumber=gid
+          '';
+          passFilter  = "(uid=%n)";
+        };
+
+        postfix = {
+          filter = "skMail=%s";
+
+          # these may be reversed???
+          # https://gist.github.com/calbrecht/bca39174f39a74e52a6d05bf630ad495
+          uidAttribute = "skMail";
+          mailAttribute = "uid";
+        };
+
+
+      };
+
+
+      # feckin spammers
+      rejectRecipients = [
+
+      ];
+
+    };
+
+    # tune the spam filter
+    /*
+    services.rspamd.extraConfig = ''
+      actions {
+        reject = null; # Disable rejects, default is 15
+        add_header = 7; # Add header when reaching this score
+        greylist = 4; # Apply greylisting when reaching this score
+      }
+    '';
+    */
+  };
+}