From 5cb23173dfa44a9097fdfa787cea322b88de005c Mon Sep 17 00:00:00 2001
From: M66B <M66B@users.noreply.github.com>
Date: Fri, 28 Oct 2022 16:16:20 +0200
Subject: [PATCH] [EOF] is an I/O error

---
 app/src/main/java/eu/faircode/email/ConnectionHelper.java | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/app/src/main/java/eu/faircode/email/ConnectionHelper.java b/app/src/main/java/eu/faircode/email/ConnectionHelper.java
index 5a035b913d..95ce9773cf 100644
--- a/app/src/main/java/eu/faircode/email/ConnectionHelper.java
+++ b/app/src/main/java/eu/faircode/email/ConnectionHelper.java
@@ -60,6 +60,7 @@ import java.util.List;
 import java.util.Locale;
 import java.util.Objects;
 
+import javax.mail.MessagingException;
 import javax.net.SocketFactory;
 import javax.net.ssl.HostnameVerifier;
 import javax.net.ssl.HttpsURLConnection;
@@ -422,6 +423,12 @@ public class ConnectionHelper {
     }
 
     static boolean isIoError(Throwable ex) {
+        if (ex instanceof MessagingException &&
+                ex.getMessage() != null &&
+                ex.getMessage().contains("Got bad greeting") &&
+                ex.getMessage().contains("[EOF]"))
+            return true;
+
         while (ex != null) {
             if (isMaxConnections(ex.getMessage()) ||
                     ex instanceof IOException ||
@@ -435,6 +442,7 @@ public class ConnectionHelper {
                 return true;
             ex = ex.getCause();
         }
+
         return false;
     }