CONTENTS Title Page Copyright Page 1 Introduction 2 Documentation Provided with the MAILbus 400 MTA 3 Upgrading the DEC X.500 Directory Service 4 New Features for This Release 4.1 New Relayer Behaviour when MPDU Transfer Fails Repeatedly 4.2 Agents and the Shared File 1992 Interface 4.3 Session Address and MTA Setup 4.4 New Load Countries Script 4.5 Dump Directory Tool Retired 4.6 Example User Agent 4.7 Non-Delivery Reason and Diagnostic Codes 5 Restrictions Removed in this Release 5.1 Using the Same MTA Name and Peer Name 5.2 Shared File Agents and Archiving 5.3 Message Expiry Times at First ADMD 5.4 Postal O/R Address PDS Name 6 Related Products 6.1 Interworking with the VAX Message Router X.400 Gateway 6.2 Using the DEC ODA CDA Gateway 6.3 Using the CDA Converter Library 7 Restrictions in DECnet/OSI for OpenVMS 7.1 NCL Restrictions 7.1.1 Limited NCL Command Buffer Size 7.1.2 Showing Write-Only Characteristic Attributes Using NCL 7.1.3 NCL and Quoted Strings 7.1.4 Problems Showing MPDUs With a Large Number of Recipients 7.2 Cluster-Wide NSAPs 7.3 OSI Applications Need to be Restarted When the OSI Transport Entity is Deleted 7.4 OSI Transport Entity Attribute: CONS NSAP Addresses 8 Restrictions in the MAILbus 400 MTA 8.1 MTA Requires Unique PSEL, SSEL or TSEL Values for Inbound Communication Over CONS 8.2 Activity Name Not Specified in Events 8.3 Disabling Peer MTA Entities During Message Transfer 8.4 Cannot Use the WITH Clause in MTA and MTS Module Commands 8.5 Using MTA and MTS Module SHOW Commands With Repeated Attributes 8.6 Maximum Attribute Length Not Checked for Directory Entries 8.7 MTS Module and Long Distribution Lists 8.8 Access to Accounting Log Files