diff --git a/app/src/main/java/eu/faircode/email/MessageHelper.java b/app/src/main/java/eu/faircode/email/MessageHelper.java
index c48334a51e..53c7ee7df5 100644
--- a/app/src/main/java/eu/faircode/email/MessageHelper.java
+++ b/app/src/main/java/eu/faircode/email/MessageHelper.java
@@ -1716,6 +1716,10 @@ public class MessageHelper {
         if (!TextUtils.isEmpty(zeptomail))
             return "zeptomail";
 
+        String xmailer = imessage.getHeader("X-Mailer", null);
+        if (!TextUtils.isEmpty(xmailer) && xmailer.contains("PHPMailer"))
+            return "phpmailer";
+
         return null;
     }
 
diff --git a/app/src/main/res/drawable/infra_phpmailer.xml b/app/src/main/res/drawable/infra_phpmailer.xml
new file mode 100644
index 0000000000..0908dfbe9a
--- /dev/null
+++ b/app/src/main/res/drawable/infra_phpmailer.xml
@@ -0,0 +1,24 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="2498dp"
+    android:height="2500dp"
+    android:viewportWidth="817.1"
+    android:viewportHeight="817.1">
+  <path
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+      android:fillColor="#fefefe"/>
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+      android:pathData="m138.6,213.9c0,-21.8 0.2,-43.5 -0.1,-65.3 -0.1,-6.7 1.9,-8.8 8.6,-8.5 19.4,0.6 38.8,-0.1 58.1,0.9 31.5,1.7 56.5,20.8 63.5,47.2 11.3,42.4 -9.6,85.3 -47,95.9 -14.2,4 -28.8,4.2 -43.5,4 -10.5,-0.1 -21.1,-0.4 -31.6,0.1 -6.2,0.3 -8.2,-1.6 -8.1,-7.9 0.3,-22.2 0.1,-44.3 0.1,-66.4zM279.1,654c0,-27.4 0,-27.4 27.2,-26.5 17.3,0.6 24.3,8.1 24.2,25.7 -0.1,17.9 -7.9,26.3 -24.8,26.7 -26.6,0.7 -26.6,0.7 -26.6,-25.9zM81.7,653.4c0,-26.5 0,-26.5 26.4,-25.9 18.1,0.4 25,7.5 24.9,25.7 -0.1,18.4 -7.8,26.4 -25.5,26.7 -25.8,0.4 -25.8,0.4 -25.8,-25.5zM533.5,702.5c0,4.2 0.6,12.2 -3.6,13.6 -9.3,3.1 -19.1,6.3 -28.6,1.9 -5.9,-2.7 -5.7,-9.5 -5.3,-15.3 0.4,-6.1 3.8,-10.2 9.7,-11.4 4.6,-1 9.4,-1.1 14.1,-1.6 13.7,-1.6 13.7,-1.6 13.7,12.8zM660.3,656.3c12.9,-0.1 21.2,9.3 20.3,22.5 -0.3,3.5 -1.6,4.8 -4.9,4.8 -10.5,0 -20.9,-0.1 -31.4,0 -4.8,0.1 -5.4,-2.3 -5.2,-6.3 0.5,-12.7 8.6,-20.9 21.2,-21z"
+      android:fillColor="#343333"/>
+</vector>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 78c676fc55..b3f18bc55b 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -1813,6 +1813,7 @@
     <string name="infra_mailjet" translatable="false">Mailjet</string>
     <string name="infra_mandrill" translatable="false">Mandrill</string>
     <string name="infra_netcore" translatable="false">Pepipost/netcore</string>
+    <string name="infra_phpmailer" translatable="false">PHPMailer</string>
     <string name="infra_postmark" translatable="false">Postmark</string>
     <string name="infra_salesforce" translatable="false">Salesforce</string>
     <string name="infra_sendgrid" translatable="false">SendGrid</string>