diff --git a/index.js b/index.js
index 0fd4854e..1ef2340f 100644
--- a/index.js
+++ b/index.js
@@ -17,6 +17,7 @@ let postfixBounceServer = require('./services/postfix-bounce-server');
 let tzupdate = require('./services/tzupdate');
 let feedcheck = require('./services/feedcheck');
 let dbcheck = require('./lib/dbcheck');
+let tools = require('./lib/tools');
 
 let port = config.www.port;
 let host = config.www.host;
@@ -88,9 +89,11 @@ function spawnSenders(callback) {
 
         let child = fork(__dirname + '/services/sender.js', []);
         let pid = child.pid;
+        tools.workers.add(child);
 
         child.on('close', (code, signal) => {
             spawned--;
+            tools.workers.delete(child);
             log.error('Child', 'Sender process %s exited with %s', pid, code || signal);
             // Respawn after 5 seconds
             setTimeout(() => spawnSender(), 5 * 1000).unref();
diff --git a/lib/tools.js b/lib/tools.js
index 790336ce..41c8b782 100644
--- a/lib/tools.js
+++ b/lib/tools.js
@@ -19,7 +19,8 @@ module.exports = {
     validateEmail,
     formatMessage,
     getMessageLinks,
-    prepareHtml
+    prepareHtml,
+    workers: new Set()
 };
 
 function toDbKey(key) {
diff --git a/package.json b/package.json
index 0af0dcf8..179ac571 100644
--- a/package.json
+++ b/package.json
@@ -35,7 +35,7 @@
     "compression": "^1.6.2",
     "config": "^1.24.0",
     "connect-flash": "^0.1.1",
-    "connect-redis": "^3.1.0",
+    "connect-redis": "^3.2.0",
     "cookie-parser": "^1.4.3",
     "csurf": "^1.9.0",
     "csv-generate": "^1.0.0",
@@ -49,21 +49,21 @@
     "handlebars": "^4.0.6",
     "hbs": "^4.0.1",
     "he": "^1.1.0",
-    "html-to-text": "^2.1.3",
+    "html-to-text": "^3.0.0",
     "humanize": "0.0.9",
     "is-url": "^1.2.2",
     "isemail": "^2.2.1",
-    "jsdom": "^9.8.3",
+    "jsdom": "^9.9.1",
     "juice": "^4.0.2",
     "libmime": "^3.0.0",
     "mkdirp": "^0.5.1",
-    "moment-timezone": "^0.5.10",
+    "moment-timezone": "^0.5.11",
     "morgan": "^1.7.0",
-    "multer": "^1.2.0",
+    "multer": "^1.2.1",
     "mysql": "^2.12.0",
     "nodemailer": "^2.7.0",
     "nodemailer-openpgp": "^1.0.2",
-    "npmlog": "^4.0.1",
+    "npmlog": "^4.0.2",
     "openpgp": "^2.3.5",
     "passport": "^0.3.2",
     "passport-local": "^1.0.0",
@@ -73,8 +73,8 @@
     "serve-favicon": "^2.3.2",
     "shortid": "^2.2.6",
     "slugify": "^1.0.2",
-    "smtp-server": "^1.16.1",
+    "smtp-server": "^1.17.0",
     "striptags": "^2.1.1",
-    "toml": "^2.3.0"
+    "toml": "^2.3.1"
   }
 }
diff --git a/routes/settings.js b/routes/settings.js
index 72e63546..5932701e 100644
--- a/routes/settings.js
+++ b/routes/settings.js
@@ -87,6 +87,11 @@ router.post('/update', passport.parseForm, passport.csrfProtection, (req, res) =
     let storeSettings = () => {
         if (i >= keys.length) {
             mailer.update();
+            tools.workers.forEach(worker => {
+                worker.send({
+                    reload: true
+                });
+            });
             req.flash('success', 'Settings updated');
             return res.redirect('/settings');
         }
diff --git a/services/sender.js b/services/sender.js
index 105e531d..23001b5b 100644
--- a/services/sender.js
+++ b/services/sender.js
@@ -544,3 +544,10 @@ let sendLoop = () => {
 };
 
 sendLoop();
+
+process.on('message', m => {
+    if (m && m.reload) {
+        log.info('Sender/' + process.pid, 'Reloading mailer config');
+        mailer.update();
+    }
+});
diff --git a/views/settings.hbs b/views/settings.hbs
index 3b1baf37..0783b5b2 100644
--- a/views/settings.hbs
+++ b/views/settings.hbs
@@ -173,14 +173,14 @@
         <div class="form-group">
             <label for="smtp-user" class="col-sm-2 control-label">Username</label>
             <div class="col-sm-10">
-                <input type="text" class="form-control" name="smtp-user" id="smtp-port" placeholder="Username, eg. myaccount@example.com" value="{{smtpUser}}" required>
+                <input type="text" class="form-control" name="smtp-user" id="smtp-port" placeholder="Username, eg. myaccount@example.com" value="{{smtpUser}}">
             </div>
         </div>
 
         <div class="form-group">
             <label for="smtp-pass" class="col-sm-2 control-label">Password</label>
             <div class="col-sm-10">
-                <input type="password" class="form-control" name="smtp-pass" id="smtp-pass" placeholder="Password" value="{{smtpPass}}" required>
+                <input type="password" class="form-control" name="smtp-pass" id="smtp-pass" placeholder="Password" value="{{smtpPass}}">
             </div>
         </div>