diff --git a/src/java/davmail/exchange/ExchangeSession.java b/src/java/davmail/exchange/ExchangeSession.java
index 05278b36..b3d6261b 100644
--- a/src/java/davmail/exchange/ExchangeSession.java
+++ b/src/java/davmail/exchange/ExchangeSession.java
@@ -1078,6 +1078,8 @@ public class ExchangeSession {
                 ByteArrayInputStream bais = new ByteArrayInputStream(htmlBody
                         // quick fix remove default office namespace
                         .replaceFirst("xmlns=\".*\"", "")
+                        // quick fix remove inline processing instructions
+                        .replaceAll("<\\?xml:namespace", "")
                         .getBytes("UTF-8"));
                 XmlDocument xmlBody = tidyDocument(bais);
                 List<Attribute> htmlBodyImgList = xmlBody.getNodes("//img/@src");