diff --git a/src/ext/notifications/class.observer.php b/src/ext/notifications/class.observer.php
index b1b7f0c..1b0db2a 100644
--- a/src/ext/notifications/class.observer.php
+++ b/src/ext/notifications/class.observer.php
@@ -48,7 +48,7 @@ class NotificationObserver implements \MTTNotificationObserverInterface
 
     private function processDelayed()
     {
-        $db = DBConnection::instance();
+        //$db = DBConnection::instance();
         $useCli = !function_exists('fastcgi_finish_request');
         $sender = new Sender( $this->prefs, $useCli );
         foreach ($this->delayedNotifications as $item) {
diff --git a/src/ext/notifications/class.sender.php b/src/ext/notifications/class.sender.php
index cb00a75..b705030 100644
--- a/src/ext/notifications/class.sender.php
+++ b/src/ext/notifications/class.sender.php
@@ -106,9 +106,20 @@ class Sender
 
     private function sendEmails(string $text, string $subject)
     {
-        $host = parse_url(get_unsafe_mttinfo('url'), PHP_URL_HOST);
-        $host = preg_replace('/^(www\.)/', '', $host);
-        $fromAddr = "mytinytodo@$host";
+        $fromAddr = '';
+        if (isset($this->prefs['mailfrom']) && $this->prefs['mailfrom'] != '') {
+            $fromAddr = str_replace( ["\r", "\n", ":", "\"", "'", "?"], '', $this->prefs['mailfrom']);
+        }
+        else {
+            $host = parse_url(get_unsafe_mttinfo('url'), PHP_URL_HOST);
+            $host = preg_replace('/^(www\.)/', '', $host);
+            if (function_exists('posix_getuid') && false !== ($userinfo = posix_getpwuid(posix_getuid())) ) {
+                $fromAddr = $userinfo['name']. '@'. $host;
+            }
+            else {
+                $fromAddr = "mytinytodo@$host";
+            }
+        }
         $from =  "myTinyTodo <$fromAddr>";
         $mttTitle =  str_replace( ["\r","\n"], '', get_unsafe_mttinfo('title') );
         $subject = "[$mttTitle] $subject";
@@ -126,7 +137,7 @@ class Sender
             $headers[] = 'Content-Transfer-Encoding: 8bit';
         }
         foreach ($this->prefs['emails'] as $email) {
-            mail($email, $subject, $text, implode("\r\n", $headers), "-f$fromAddr");
+            mail($email, $subject, $text, implode("\r\n", $headers));
         }
     }
 
diff --git a/src/ext/notifications/extension.json b/src/ext/notifications/extension.json
index 84218dc..71bc31d 100644
--- a/src/ext/notifications/extension.json
+++ b/src/ext/notifications/extension.json
@@ -1,6 +1,6 @@
 {
     "bundleId": "notifications",
     "name": "Notifications",
-    "version": "1.0.3",
+    "version": "1.1",
     "description": "Notify about new tasks and lists on e-mail or telegram"
 }
diff --git a/src/ext/notifications/lang/en.json b/src/ext/notifications/lang/en.json
index c65c38d..aed93b0 100644
--- a/src/ext/notifications/lang/en.json
+++ b/src/ext/notifications/lang/en.json
@@ -5,6 +5,8 @@
     "notifications.bot_not_configured": "Bot is not configured",
     "notifications.h_email": "E-Mail:",
     "notifications.d_email": "Separate multiple addresses with comma.",
+    "notifications.h_mailfrom": "Mail from:",
+    "notifications.d_mailfrom": "Use this e-mail as sender's address.",
     "notifications.h_telegram": "Telegram",
     "notifications.h_token": "Bot token:",
     "notifications.d_token": "Telegram Bot API token from @BotFather.",
diff --git a/src/ext/notifications/loader.php b/src/ext/notifications/loader.php
index 6b293ed..ff75776 100644
--- a/src/ext/notifications/loader.php
+++ b/src/ext/notifications/loader.php
@@ -73,6 +73,8 @@ class NotificationsExtension extends MTTExtension implements MTTHttpApiExtender,
         $ext = htmlspecialchars(self::bundleId);
         $prefs = self::preferences();
         $emails =  htmlspecialchars( implode(', ', $prefs['emails']) );
+        $mailfrom = htmlspecialchars($prefs['mailfrom'] ?? '');
+        $mailfromDefault = htmlspecialchars( ini_get('sendmail_from') ?: '' );
         $numberOfChats = count($prefs['chats']);
 
         $token = $prefs['token'] ?? '';
@@ -117,6 +119,12 @@ $warning
  </div>
  <div class="td"> <input name="emails" value="$emails" class="in350" autocomplete="off" /> </div>
 </div>
+<div class="tr">
+ <div class="th"> {$e('notifications.h_mailfrom')}
+  <div class="descr">{$e('notifications.d_mailfrom')}</div>
+ </div>
+ <div class="td"> <input name="mailfrom" value="$mailfrom" class="in350" autocomplete="email" placeholder="$mailfromDefault" /> </div>
+</div>
 <div class="tr">
  <div class="th"> {$e('notifications.h_telegram')} </div>
 </div>
@@ -154,7 +162,8 @@ EOD;
         }
         $token = $params['token'] ?? '';
         $emails = $params['emails'] ?? '';
-        if (!is_string($token) || !is_string($emails)) {
+        $mailfrom = $params['mailfrom'] ?? '';
+        if (!is_string($token) || !is_string($emails) || !is_string($mailfrom)) {
             throw new Exception("Invalid format");
         }
 
@@ -167,6 +176,7 @@ EOD;
         $prefs['token'] = $token;
         $prefs['code'] = null;
         $prefs['emails'] = [];
+        $prefs['mailfrom'] = str_replace(["\r", "\n", ":", "\"", "'", "?"], '', trim($mailfrom));
 
         // validate emails
         if ($emails != '') {