diff --git a/README.md b/README.md
index 964b3e5..2618368 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # schnack.js
 
-[Schnack](https://dict.leo.org/englisch-deutsch/schnack) is a simple Disqus-like drop-in commenting system written in JavaScript. 
+[Schnack](https://dict.leo.org/englisch-deutsch/schnack) is a simple Disqus-like drop-in commenting system written in JavaScript.
 
 * [Documentation](https://schnack.cool/)
 * [Say hello to Schnack.js](https://www.vis4.net/blog/2017/10/hello-schnack/)
@@ -79,6 +79,16 @@ Embed in your HTML page:
 
 You will find further information on the [schnack page](https://schnack.cool/).
 
+### Configuration
+
+**Notify Providers:**
+
+* pushover
+* webpush
+* slack
+* rss
+* sendmail
+
 ### Who is behind Schnack?
 
 Schnack is [yet another](https://github.com/gka/canvid/) happy collaboration between [Webkid](https://webkid.io/) and [Gregor Aisch](https://www.vis4.net).
diff --git a/package-lock.json b/package-lock.json
index 7a2db4b..99cf88f 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,15 +13,14 @@
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+        "safe-buffer": "~5.1.0"
       }
     },
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@@ -3681,9 +3781,8 @@
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-4.0.0.tgz",
       "integrity": "sha1-qEeQIusaw2iocTibY1JixQXuNo8=",
-      "dev": true,
       "requires": {
-        "ansi-regex": "3.0.0"
+        "ansi-regex": "^3.0.0"
       }
     },
     "strip-eof": {
@@ -3695,8 +3794,7 @@
     "strip-json-comments": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-2.0.1.tgz",
-      "integrity": "sha1-PFMZQukIwml8DsNEhYwobHygpgo=",
-      "dev": true
+      "integrity": "sha1-PFMZQukIwml8DsNEhYwobHygpgo="
     },
     "supports-color": {
       "version": "4.4.0",
@@ -3704,7 +3802,7 @@
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       "dev": true,
       "requires": {
-        "has-flag": "2.0.0"
+        "has-flag": "^2.0.0"
       }
     },
     "symbol-tree": {
@@ -3713,13 +3811,39 @@
       "integrity": "sha1-rifbOPZgp64uHDt9G8KQgZuFGeY=",
       "dev": true
     },
+    "tar": {
+      "version": "4.4.6",
+      "resolved": "https://registry.npmjs.org/tar/-/tar-4.4.6.tgz",
+      "integrity": "sha512-tMkTnh9EdzxyfW+6GK6fCahagXsnYk6kE6S9Gr9pjVdys769+laCTbodXDhPAjzVtEBazRgP0gYqOjnk9dQzLg==",
+      "requires": {
+        "chownr": "^1.0.1",
+        "fs-minipass": "^1.2.5",
+        "minipass": "^2.3.3",
+        "minizlib": "^1.1.0",
+        "mkdirp": "^0.5.0",
+        "safe-buffer": "^5.1.2",
+        "yallist": "^3.0.2"
+      },
+      "dependencies": {
+        "safe-buffer": {
+          "version": "5.1.2",
+          "resolved": "https://registry.npmjs.org/safe-buffer/-/safe-buffer-5.1.2.tgz",
+          "integrity": "sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g=="
+        },
+        "yallist": {
+          "version": "3.0.2",
+          "resolved": "https://registry.npmjs.org/yallist/-/yallist-3.0.2.tgz",
+          "integrity": "sha1-hFK0u36Dx8GI2AQcGoN8dz1ti7k="
+        }
+      }
+    },
     "term-size": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/term-size/-/term-size-1.2.0.tgz",
       "integrity": "sha1-RYuDiH8oj8Vtb/+/rSYuJmOO+mk=",
       "dev": true,
       "requires": {
-        "execa": "0.7.0"
+        "execa": "^0.7.0"
       }
     },
     "through": {
@@ -3741,7 +3865,7 @@
       "dev": true,
       "requires": {
         "collapse-whitespace": "1.1.2",
-        "jsdom": "9.12.0"
+        "jsdom": "^9.0.0"
       }
     },
     "touch": {
@@ -3750,7 +3874,7 @@
       "integrity": "sha512-WBx8Uy5TLtOSRtIq+M03/sKDrXCLHxwDcquSP2c43Le03/9serjQBIztjRz6FkJez9D/hleyAXTBGLwwZUw9lA==",
       "dev": true,
       "requires": {
-        "nopt": "1.0.10"
+        "nopt": "~1.0.10"
       }
     },
     "tough-cookie": {
@@ -3758,7 +3882,7 @@
       "resolved": "https://registry.npmjs.org/tough-cookie/-/tough-cookie-2.3.3.tgz",
       "integrity": "sha1-C2GKVWW23qkL80JdBNVe3EdadWE=",
       "requires": {
-        "punycode": "1.4.1"
+        "punycode": "^1.4.1"
       }
     },
     "tr46": {
@@ -3772,7 +3896,7 @@
       "resolved": "https://registry.npmjs.org/tunnel-agent/-/tunnel-agent-0.6.0.tgz",
       "integrity": "sha1-J6XeoGs2sEoKmWZ3SykIaPD8QP0=",
       "requires": {
-        "safe-buffer": "5.1.1"
+        "safe-buffer": "^5.0.1"
       }
     },
     "tweetnacl": {
@@ -3787,7 +3911,7 @@
       "integrity": "sha1-WITKtRLPHTVeP7eE8wgEsrUg23I=",
       "dev": true,
       "requires": {
-        "prelude-ls": "1.1.2"
+        "prelude-ls": "~1.1.2"
       }
     },
     "type-is": {
@@ -3796,7 +3920,7 @@
       "integrity": "sha1-yrEPtJCeRByChC6v4a1kbIGARBA=",
       "requires": {
         "media-typer": "0.3.0",
-        "mime-types": "2.1.17"
+        "mime-types": "~2.1.15"
       }
     },
     "uglify-js": {
@@ -3805,8 +3929,8 @@
       "integrity": "sha512-5ZUOgufCHjN2mBBLfz63UtWTP6va2sSzBpNCM+/iqI6RnPzEhANmB0EKiKBYdQbc3v7KeomXJ2DJx0Xq9gvUvA==",
       "dev": true,
       "requires": {
-        "commander": "2.11.0",
-        "source-map": "0.5.7"
+        "commander": "~2.11.0",
+        "source-map": "~0.5.1"
       }
     },
     "uid-safe": {
@@ -3814,7 +3938,7 @@
       "resolved": "https://registry.npmjs.org/uid-safe/-/uid-safe-2.1.5.tgz",
       "integrity": "sha512-KPHm4VL5dDXKz01UuEd88Df+KzynaohSL9fBh096KWAxSKZQDI2uBrVqtvRM4rwrIrRRKsdLNML/lnaaVSRioA==",
       "requires": {
-        "random-bytes": "1.0.0"
+        "random-bytes": "~1.0.0"
       }
     },
     "uid2": {
@@ -3839,7 +3963,7 @@
       "integrity": "sha1-GY+9rrolTniLDvy2MLwR8kopWeA=",
       "dev": true,
       "requires": {
-        "qs": "2.3.3"
+        "qs": "~2.3.3"
       }
     },
     "unique-string": {
@@ -3848,7 +3972,7 @@
       "integrity": "sha1-nhBXzKhRq7kzmPizOuGHuZyuwRo=",
       "dev": true,
       "requires": {
-        "crypto-random-string": "1.0.0"
+        "crypto-random-string": "^1.0.0"
       }
     },
     "unpipe": {
@@ -3868,14 +3992,14 @@
       "integrity": "sha1-G1g3z5DAc22IYncytmHBOPht5y8=",
       "dev": true,
       "requires": {
-        "boxen": "1.2.1",
-        "chalk": "1.1.3",
-        "configstore": "3.1.1",
-        "import-lazy": "2.1.0",
-        "is-npm": "1.0.0",
-        "latest-version": "3.1.0",
-        "semver-diff": "2.1.0",
-        "xdg-basedir": "3.0.0"
+        "boxen": "^1.0.0",
+        "chalk": "^1.0.0",
+        "configstore": "^3.0.0",
+        "import-lazy": "^2.1.0",
+        "is-npm": "^1.0.0",
+        "latest-version": "^3.0.0",
+        "semver-diff": "^2.0.0",
+        "xdg-basedir": "^3.0.0"
       },
       "dependencies": {
         "ansi-regex": {
@@ -3896,11 +4020,11 @@
           "integrity": "sha1-qBFcVeSnAv5NFQq9OHKCKn4J/Jg=",
           "dev": true,
           "requires": {
-            "ansi-styles": "2.2.1",
-            "escape-string-regexp": "1.0.5",
-            "has-ansi": "2.0.0",
-            "strip-ansi": "3.0.1",
-            "supports-color": "2.0.0"
+            "ansi-styles": "^2.2.1",
+            "escape-string-regexp": "^1.0.2",
+            "has-ansi": "^2.0.0",
+            "strip-ansi": "^3.0.0",
+            "supports-color": "^2.0.0"
           }
         },
         "strip-ansi": {
@@ -3909,7 +4033,7 @@
           "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
           "dev": true,
           "requires": {
-            "ansi-regex": "2.1.1"
+            "ansi-regex": "^2.0.0"
           }
         },
         "supports-color": {
@@ -3938,7 +4062,7 @@
       "integrity": "sha1-evjzA2Rem9eaJy56FKxovAYJ2nM=",
       "dev": true,
       "requires": {
-        "prepend-http": "1.0.4"
+        "prepend-http": "^1.0.1"
       }
     },
     "urlsafe-base64": {
@@ -3949,8 +4073,7 @@
     "util-deprecate": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/util-deprecate/-/util-deprecate-1.0.2.tgz",
-      "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=",
-      "dev": true
+      "integrity": "sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8="
     },
     "utils-merge": {
       "version": "1.0.1",
@@ -3972,9 +4095,9 @@
       "resolved": "https://registry.npmjs.org/verror/-/verror-1.10.0.tgz",
       "integrity": "sha1-OhBcoXBTr1XW4nDB+CiGguGNpAA=",
       "requires": {
-        "assert-plus": "1.0.0",
+        "assert-plus": "^1.0.0",
         "core-util-is": "1.0.2",
-        "extsprintf": "1.3.0"
+        "extsprintf": "^1.2.0"
       }
     },
     "vlq": {
@@ -3994,11 +4117,11 @@
       "resolved": "https://registry.npmjs.org/web-push/-/web-push-3.2.3.tgz",
       "integrity": "sha1-JpSSqgbRSBqCIkJbr0xo/iP8vvw=",
       "requires": {
-        "asn1.js": "4.9.1",
-        "http_ece": "0.5.2",
-        "jws": "3.1.4",
-        "minimist": "1.2.0",
-        "urlsafe-base64": "1.0.0"
+        "asn1.js": "^4.8.1",
+        "http_ece": "^0.5.2",
+        "jws": "^3.1.3",
+        "minimist": "^1.2.0",
+        "urlsafe-base64": "^1.0.0"
       }
     },
     "webidl-conversions": {
@@ -4022,8 +4145,8 @@
       "integrity": "sha1-0pgaqRSMHgCkHFphMRZqtGg7vMA=",
       "dev": true,
       "requires": {
-        "tr46": "0.0.3",
-        "webidl-conversions": "3.0.1"
+        "tr46": "~0.0.3",
+        "webidl-conversions": "^3.0.0"
       },
       "dependencies": {
         "webidl-conversions": {
@@ -4040,7 +4163,15 @@
       "integrity": "sha512-xcJpopdamTuY5duC/KnTTNBraPK54YwpenP4lzxU8H91GudWpFv38u0CKjclE1Wi2EH2EDz5LRcHcKbCIzqGyg==",
       "dev": true,
       "requires": {
-        "isexe": "2.0.0"
+        "isexe": "^2.0.0"
+      }
+    },
+    "wide-align": {
+      "version": "1.1.3",
+      "resolved": "https://registry.npmjs.org/wide-align/-/wide-align-1.1.3.tgz",
+      "integrity": "sha512-QGkOQc8XL6Bt5PwnsExKBPuMKBxnGxWWW3fU55Xt4feHozMUhdUMaBCk290qpm/wG5u/RSKzwdAC4i51YigihA==",
+      "requires": {
+        "string-width": "^1.0.2 || 2"
       }
     },
     "widest-line": {
@@ -4049,7 +4180,7 @@
       "integrity": "sha1-DAnIXCqUaD0Nfq+O4JfVZL8OEFw=",
       "dev": true,
       "requires": {
-        "string-width": "1.0.2"
+        "string-width": "^1.0.1"
       },
       "dependencies": {
         "ansi-regex": {
@@ -4064,7 +4195,7 @@
           "integrity": "sha1-754xOG8DGn8NZDr4L95QxFfvAMs=",
           "dev": true,
           "requires": {
-            "number-is-nan": "1.0.1"
+            "number-is-nan": "^1.0.0"
           }
         },
         "string-width": {
@@ -4073,9 +4204,9 @@
           "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
           "dev": true,
           "requires": {
-            "code-point-at": "1.1.0",
-            "is-fullwidth-code-point": "1.0.0",
-            "strip-ansi": "3.0.1"
+            "code-point-at": "^1.0.0",
+            "is-fullwidth-code-point": "^1.0.0",
+            "strip-ansi": "^3.0.0"
           }
         },
         "strip-ansi": {
@@ -4084,7 +4215,7 @@
           "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
           "dev": true,
           "requires": {
-            "ansi-regex": "2.1.1"
+            "ansi-regex": "^2.0.0"
           }
         }
       }
@@ -4105,8 +4236,8 @@
       "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-2.1.0.tgz",
       "integrity": "sha1-2Pw9KE3QV5T+hJc8rs3Rz4JP3YU=",
       "requires": {
-        "string-width": "1.0.2",
-        "strip-ansi": "3.0.1"
+        "string-width": "^1.0.1",
+        "strip-ansi": "^3.0.1"
       },
       "dependencies": {
         "ansi-regex": {
@@ -4119,7 +4250,7 @@
           "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz",
           "integrity": "sha1-754xOG8DGn8NZDr4L95QxFfvAMs=",
           "requires": {
-            "number-is-nan": "1.0.1"
+            "number-is-nan": "^1.0.0"
           }
         },
         "string-width": {
@@ -4127,9 +4258,9 @@
           "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
           "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
           "requires": {
-            "code-point-at": "1.1.0",
-            "is-fullwidth-code-point": "1.0.0",
-            "strip-ansi": "3.0.1"
+            "code-point-at": "^1.0.0",
+            "is-fullwidth-code-point": "^1.0.0",
+            "strip-ansi": "^3.0.0"
           }
         },
         "strip-ansi": {
@@ -4137,20 +4268,25 @@
           "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
           "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
           "requires": {
-            "ansi-regex": "2.1.1"
+            "ansi-regex": "^2.0.0"
           }
         }
       }
     },
+    "wrappy": {
+      "version": "1.0.2",
+      "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
+      "integrity": "sha1-tSQ9jz7BqjXxNkYFvA0QNuMKtp8="
+    },
     "write-file-atomic": {
       "version": "2.3.0",
       "resolved": "https://registry.npmjs.org/write-file-atomic/-/write-file-atomic-2.3.0.tgz",
       "integrity": "sha512-xuPeK4OdjWqtfi59ylvVL0Yn35SF3zgcAcv7rBPFHVaEapaDr4GdGgm3j7ckTwH9wHL7fGmgfAnb0+THrHb8tA==",
       "dev": true,
       "requires": {
-        "graceful-fs": "4.1.11",
-        "imurmurhash": "0.1.4",
-        "signal-exit": "3.0.2"
+        "graceful-fs": "^4.1.11",
+        "imurmurhash": "^0.1.4",
+        "signal-exit": "^3.0.2"
       }
     },
     "xdg-basedir": {
@@ -4182,8 +4318,8 @@
       "integrity": "sha512-esZnJZJOiJR9wWKMyuvSE1y6Dq5LCuJanqhxslH2bxM6duahNZ+HMpCLhBQGZkbX6xRf8x1Y2eJlgt2q3qo49Q==",
       "dev": true,
       "requires": {
-        "sax": "1.2.4",
-        "xmlbuilder": "9.0.4"
+        "sax": ">=0.6.0",
+        "xmlbuilder": "~9.0.1"
       }
     },
     "xmlbuilder": {
@@ -4202,7 +4338,7 @@
       "resolved": "https://registry.npmjs.org/xtraverse/-/xtraverse-0.1.0.tgz",
       "integrity": "sha1-t0G60BjveNip0ug63gB7P3lZxzI=",
       "requires": {
-        "xmldom": "0.1.27"
+        "xmldom": "0.1.x"
       }
     },
     "y18n": {
@@ -4221,13 +4357,13 @@
       "resolved": "https://registry.npmjs.org/yargs/-/yargs-3.32.0.tgz",
       "integrity": "sha1-AwiOnr+edWtpdRYR0qXvWRSCyZU=",
       "requires": {
-        "camelcase": "2.1.1",
-        "cliui": "3.2.0",
-        "decamelize": "1.2.0",
-        "os-locale": "1.4.0",
-        "string-width": "1.0.2",
-        "window-size": "0.1.4",
-        "y18n": "3.2.1"
+        "camelcase": "^2.0.1",
+        "cliui": "^3.0.3",
+        "decamelize": "^1.1.1",
+        "os-locale": "^1.4.0",
+        "string-width": "^1.0.1",
+        "window-size": "^0.1.4",
+        "y18n": "^3.2.0"
       },
       "dependencies": {
         "ansi-regex": {
@@ -4245,7 +4381,7 @@
           "resolved": "https://registry.npmjs.org/is-fullwidth-code-point/-/is-fullwidth-code-point-1.0.0.tgz",
           "integrity": "sha1-754xOG8DGn8NZDr4L95QxFfvAMs=",
           "requires": {
-            "number-is-nan": "1.0.1"
+            "number-is-nan": "^1.0.0"
           }
         },
         "string-width": {
@@ -4253,9 +4389,9 @@
           "resolved": "https://registry.npmjs.org/string-width/-/string-width-1.0.2.tgz",
           "integrity": "sha1-EYvfW4zcUaKn5w0hHgfisLmxB9M=",
           "requires": {
-            "code-point-at": "1.1.0",
-            "is-fullwidth-code-point": "1.0.0",
-            "strip-ansi": "3.0.1"
+            "code-point-at": "^1.0.0",
+            "is-fullwidth-code-point": "^1.0.0",
+            "strip-ansi": "^3.0.0"
           }
         },
         "strip-ansi": {
@@ -4263,7 +4399,7 @@
           "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-3.0.1.tgz",
           "integrity": "sha1-ajhfuIU9lS1f8F0Oiq+UJ43GPc8=",
           "requires": {
-            "ansi-regex": "2.1.1"
+            "ansi-regex": "^2.0.0"
           }
         }
       }
diff --git a/package.json b/package.json
index 5f86363..1d210e0 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,7 @@
   "version": "0.1.4",
   "dependencies": {
     "body-parser": "^1.18.2",
-    "connect-sqlite3": "^0.9.10",
+    "connect-sqlite3": "^0.9.11",
     "cors": "^2.8.4",
     "express": "^4.16.1",
     "express-session": "^1.15.6",
@@ -19,8 +19,8 @@
     "pushover-notifications": "^0.2.4",
     "request": "^2.83.0",
     "rss": "^1.2.2",
-    "sqlite": "^2.8.0",
-    "sqlite3": "^3.1.13",
+    "sqlite": "^3.0.0",
+    "sqlite3": "^4.0.2",
     "unfetch": "^3.0.0",
     "web-push": "^3.2.3"
   },
diff --git a/src/push/index.js b/src/push/index.js
index 6ca0fd6..33e436e 100644
--- a/src/push/index.js
+++ b/src/push/index.js
@@ -4,6 +4,7 @@ const webpush = require('web-push');
 const Pushover = require('pushover-notifications');
 const queries = require('../db/queries');
 const slack = require('./slack');
+const sendmail = require('./sendmail');
 const {
     send_file,
     send_string,
diff --git a/src/push/sendmail.js b/src/push/sendmail.js
new file mode 100644
index 0000000..3234f84
--- /dev/null
+++ b/src/push/sendmail.js
@@ -0,0 +1,42 @@
+const { spawn } = require('child_process');
+const config = require('../config');
+const schnackEvents = require('../events');
+
+const notify = config.get('notify');
+
+function createEmailBody(config, event) {
+    const postUrl = config.get('page_url').replace('%SLUG%', event.slug);
+    const user = event.user.display_name || event.user.name;
+    const body =
+`
+To: Schnack Admin <${notify.sendmail.to}>
+From: ${user} <${notify.sendmail.from}>
+Subject: New comment on your post ${postUrl}
+
+New comment on your post ${postUrl}
+
+Author: ${user}
+
+${event.comment}
+
+You can see all comments on this post here:
+${postUrl}#comments
+
+Permalink: ${postUrl}#comment-${event.id}
+`.split(/\n/).join('\r\n').trim();
+
+    return body;
+}
+
+if (notify.sendmail) {
+    schnackEvents.on('new-comment', (event) => {
+        const body = createEmailBody(config, event);
+        try {
+            const sendmail = spawn('sendmail', [notify.sendmail.to]);
+            sendmail.stdin.write(body);
+            sendmail.stdin.end();
+        } catch (error) {
+            console.error('Error sending sendmail notification:', error);
+        }
+    });
+}