diff --git a/pkgs/development/ruby-modules/with-packages/Gemfile b/pkgs/development/ruby-modules/with-packages/Gemfile
index 479981419801..21c4765abf2f 100644
--- a/pkgs/development/ruby-modules/with-packages/Gemfile
+++ b/pkgs/development/ruby-modules/with-packages/Gemfile
@@ -84,6 +84,7 @@ gem 'jwt'
 gem 'kramdown-rfc2629'
 gem 'libv8'
 gem 'libxml-ruby'
+gem 'mail'
 gem 'magic'
 gem 'markaby'
 gem 'method_source'
diff --git a/pkgs/top-level/ruby-packages.nix b/pkgs/top-level/ruby-packages.nix
index d1bf5cf7b69e..97d5ad25f63f 100644
--- a/pkgs/top-level/ruby-packages.nix
+++ b/pkgs/top-level/ruby-packages.nix
@@ -663,6 +663,16 @@
     };
     version = "0.10.17";
   };
+  date = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "03skfikihpx37rc27vr3hwrb057gxnmdzxhmzd4bf4jpkl0r55w1";
+      type = "gem";
+    };
+    version = "3.3.3";
+  };
   dep-selector-libgecode = {
     groups = ["default"];
     platforms = [];
@@ -1873,6 +1883,17 @@
     };
     version = "0.2.9";
   };
+  mail = {
+    dependencies = ["mini_mime" "net-imap" "net-pop" "net-smtp"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1bf9pysw1jfgynv692hhaycfxa8ckay1gjw5hz3madrbrynryfzc";
+      type = "gem";
+    };
+    version = "2.8.1";
+  };
   markaby = {
     dependencies = ["builder"];
     groups = ["default"];
@@ -1945,6 +1966,16 @@
     };
     version = "4.11.0";
   };
+  mini_mime = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0lbim375gw2dk6383qirz13hgdmxlan0vc5da2l072j3qw6fqjm5";
+      type = "gem";
+    };
+    version = "1.1.2";
+  };
   mini_portile2 = {
     groups = ["default"];
     platforms = [];
@@ -2077,6 +2108,39 @@
     };
     version = "1.4.10";
   };
+  net-imap = {
+    dependencies = ["date" "net-protocol"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1d996zf3g8xz244791b0qsl9vr7zg4lqnnmf9k2kshr9lki5jam8";
+      type = "gem";
+    };
+    version = "0.3.4";
+  };
+  net-pop = {
+    dependencies = ["net-protocol"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1wyz41jd4zpjn0v1xsf9j778qx1vfrl24yc20cpmph8k42c4x2w4";
+      type = "gem";
+    };
+    version = "0.1.2";
+  };
+  net-protocol = {
+    dependencies = ["timeout"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0dxckrlw4q1lcn3qg4mimmjazmg9bma5gllv72f8js3p36fb3b91";
+      type = "gem";
+    };
+    version = "0.2.1";
+  };
   net-scp = {
     dependencies = ["net-ssh"];
     groups = ["default"];
@@ -2088,6 +2152,17 @@
     };
     version = "4.0.0";
   };
+  net-smtp = {
+    dependencies = ["net-protocol"];
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "1c6md06hm5bf6rv53sk54dl2vg038pg8kglwv3rayx0vk2mdql9x";
+      type = "gem";
+    };
+    version = "0.3.3";
+  };
   net-ssh = {
     groups = ["default"];
     platforms = [];
@@ -3202,6 +3277,16 @@
     };
     version = "2.0.11";
   };
+  timeout = {
+    groups = ["default"];
+    platforms = [];
+    source = {
+      remotes = ["https://rubygems.org"];
+      sha256 = "0lnh0kr7f43m1cjzc2jvggfsl1rzsaj2rd3pn6vp7mcqliymzaza";
+      type = "gem";
+    };
+    version = "0.3.1";
+  };
   tiny_tds = {
     groups = ["default"];
     platforms = [];