diff --git a/src/com/fsck/k9/mail/store/ImapStore.java b/src/com/fsck/k9/mail/store/ImapStore.java
index 5661e4af9..77251333b 100644
--- a/src/com/fsck/k9/mail/store/ImapStore.java
+++ b/src/com/fsck/k9/mail/store/ImapStore.java
@@ -2338,12 +2338,6 @@ public class ImapStore extends Store {
                 mOut = new BufferedOutputStream(mOut, 1024);
 
                 try {
-                    // Yahoo! requires a custom IMAP command to work right over a non-3G network
-                    if (mSettings.getHost().endsWith("yahoo.com")) {
-                        if (K9.DEBUG)
-                            Log.v(K9.LOG_TAG, "Found Yahoo! account.  Sending proprietary commands.");
-                        executeSimpleCommand("ID (\"GUID\" \"1\")");
-                    }
                     if (mSettings.getAuthType() == AuthType.CRAM_MD5) {
                         authCramMD5();
                         // The authCramMD5 method called on the previous line does not allow for handling updated capabilities