diff --git a/mozilla/mailnews/public/Makefile.in b/mozilla/mailnews/public/Makefile.in
index d04476a5c62..0ce8f9d2bdc 100644
--- a/mozilla/mailnews/public/Makefile.in
+++ b/mozilla/mailnews/public/Makefile.in
@@ -23,6 +23,12 @@ VPATH		= @srcdir@
 include $(DEPTH)/config/autoconf.mk
 
 EXPORTS= \
+		nsIMsgHost.h \
 		$(NULL)
 
+IDLSRCS = \
+		nsIMsgHost.idl \
+		$(NULL)
+
+
 include $(topsrcdir)/config/rules.mk
diff --git a/mozilla/mailnews/public/nsIMsgHost.h b/mozilla/mailnews/public/nsIMsgHost.h
new file mode 100644
index 00000000000..2568f9d1c33
--- /dev/null
+++ b/mozilla/mailnews/public/nsIMsgHost.h
@@ -0,0 +1,42 @@
+/*
+ * DO NOT EDIT.  THIS FILE IS GENERATED FROM nsIMsgHost.idl
+ */
+
+#ifndef __gen_nsIMsgHost_h__
+#define __gen_nsIMsgHost_h__
+
+#include "nsISupports.h" /* interface nsISupports */
+
+
+/* starting interface nsIMsgHost */
+
+/* {ADFB3740-AA57-11d2-B7ED-00805F05FFA5} */
+#define NS_IMSGHOST_IID_STR "ADFB3740-AA57-11d2-B7ED-00805F05FFA5"
+#define NS_IMSGHOST_IID \
+  {0xADFB3740, 0xAA57, 0x11d2, \
+    { 0xB7, 0xED, 0x00, 0x80, 0x5F, 0x05, 0xFF, 0xA5 }}
+
+class nsIMsgHost : public nsISupports {
+ private:
+  void operator delete(void *); // NOT TO BE IMPLEMENTED
+
+ public: 
+  static const nsIID& IID() {
+    static nsIID iid = NS_IMSGHOST_IID;
+    return iid;
+  }
+
+  /*  <IDL>  */
+  NS_IMETHOD GetHostname(char * *aHostname) = 0;
+  NS_IMETHOD SetHostname(char * aHostname) = 0;
+
+  /*  <IDL>  */
+  NS_IMETHOD GetUiName(char * *aUiName) = 0;
+  NS_IMETHOD SetUiName(char * aUiName) = 0;
+
+  /*  <IDL>  */
+  NS_IMETHOD GetPort(PRInt32 *aPort) = 0;
+  NS_IMETHOD SetPort(PRInt32 aPort) = 0;
+};
+
+#endif /* __gen_nsIMsgHost_h__ */
diff --git a/mozilla/mailnews/public/nsIMsgHost.idl b/mozilla/mailnews/public/nsIMsgHost.idl
new file mode 100644
index 00000000000..e0a3adcabf6
--- /dev/null
+++ b/mozilla/mailnews/public/nsIMsgHost.idl
@@ -0,0 +1,28 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ *
+ * The contents of this file are subject to the Netscape Public License
+ * Version 1.0 (the "NPL"); you may not use this file except in
+ * compliance with the NPL.  You may obtain a copy of the NPL at
+ * http://www.mozilla.org/NPL/
+ *
+ * Software distributed under the NPL is distributed on an "AS IS" basis,
+ * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
+ * for the specific language governing rights and limitations under the
+ * NPL.
+ *
+ * The Initial Developer of this code under the NPL is Netscape
+ * Communications Corporation.  Portions created by Netscape are
+ * Copyright (C) 1998 Netscape Communications Corporation.  All Rights
+ * Reserved.
+ */
+
+#include "nsISupports.idl"
+
+[object, uuid(ADFB3740-AA57-11d2-B7ED-00805F05FFA5)]
+interface nsIMsgHost : nsISupports {
+
+    attribute string hostname;
+    attribute string uiName;
+    attribute long port;
+};
+