MTA-MIB DEFINITIONS ::= BEGIN

   IMPORTS
       OBJECT-TYPE, Counter32, Gauge32
         FROM SNMPv2-SMI
       DisplayString, TimeInterval
         FROM SNMPv2-TC
       mib-2
         FROM RFC1213-MIB
       applIndex
         FROM APPLICATION-MIB;

   mta MODULE-IDENTITY
       LAST-UPDATED "9311280000Z"
       ORGANIZATION "IETF Mail and Directory Management Working Group"
       CONTACT-INFO
         "        Ned Freed

          Postal: Innosoft International, Inc.
                  250 West First Street, Suite 240
                  Claremont, CA  91711
                  US

          Tel: +1 909 624 7907
          Fax: +1 909 621 5319

          E-Mail: ned@innosoft.com"
       DESCRIPTION
         "The MIB module describing Message Transfer Agents (MTAs)"
       ::= { mib-2 28 }

   mtaTable OBJECT-TYPE
       SYNTAX SEQUENCE OF MtaEntry
       MAX-ACCESS not-accessible
       STATUS current
       DESCRIPTION
         "The table holding information specific to an MTA."
       ::= {mta 1}

   mtaEntry OBJECT-TYPE
       SYNTAX MtaEntry
       MAX-ACCESS not-accessible


       STATUS current
       DESCRIPTION
         "The entry associated with each MTA."
       INDEX {applIndex}


       ::= {mtaTable 1}

   MtaEntry ::= SEQUENCE {
       mtaReceivedMessages
         Counter32,
       mtaStoredMessages
         Gauge32,
       mtaTransmittedMessages
         Counter32,
       mtaReceivedVolume
         Counter32,
       mtaStoredVolume
         Gauge32,
       mtaTransmittedVolume
         Counter32,
       mtaReceivedRecipients
         Counter32,
       mtaStoredRecipients
         Gauge32,
       mtaTransmittedRecipients
         Counter32
   }

   mtaReceivedMessages OBJECT-TYPE
       SYNTAX Counter32
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "The number of messages received since MTA initialization."
       ::= {mtaEntry 1}

   mtaStoredMessages OBJECT-TYPE
       SYNTAX Gauge32
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "The total number of messages currently stored in the MTA."
       ::= {mtaEntry 2}

   mtaTransmittedMessages OBJECT-TYPE
       SYNTAX Counter32
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "The number of messages transmitted since MTA initialization."
       ::= {mtaEntry 3}


   mtaReceivedVolume OBJECT-TYPE
       SYNTAX Counter32
       UNITS "K-octets"
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "The total volume of messages received since MTA
         initialization, measured in kilo-octets.  This volume should
         include all transferred data that is logically above the mail
         transport protocol level.  For example, an SMTP-based MTA
         should use the number of kilo-octets in the message header
         and body, while an X.400-based MTA should use the number of
         kilo-octets of P2 data."
       ::= {mtaEntry 4}

   mtaStoredVolume OBJECT-TYPE
       SYNTAX Gauge32
       UNITS "K-octets"
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "The total volume of messages currently stored in the MTA,
         measured in kilo-octets.  This volume should include all
         stored data that is logically above the mail transport
         protocol level.  For example, an SMTP-based MTA should
         use the number of kilo-octets in the message header and
         body, while an X.400-based MTA would use the number of
         kilo-octets of P2 data."
       ::= {mtaEntry 5}

   mtaTransmittedVolume OBJECT-TYPE
       SYNTAX Counter32
       UNITS "K-octets"
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "The total volume of messages transmitted since MTA
         initialization, measured in kilo-octets.  This volume should
         include all transferred data that is logically above the mail
         transport protocol level.  For example, an SMTP-based MTA
         should use the number of kilo-octets in the message header
         and body, while an X.400-based MTA should use the number of
         kilo-octets of P2 data."
       ::= {mtaEntry 6}


   mtaReceivedRecipients OBJECT-TYPE
       SYNTAX Counter32
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "The total number of recipients specified in all messages
         received since MTA initialization.  Recipients this MTA
         had no responsibility for should not be counted even if
         information about such recipients is available."
       ::= {mtaEntry 7}

   mtaStoredRecipients OBJECT-TYPE
       SYNTAX Gauge32
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "The total number of recipients specified in all messages
         currently stored in the MTA.  Recipients this MTA had no
         responsibility for should not be counted."
       ::= {mtaEntry 8}

   mtaTransmittedRecipients OBJECT-TYPE
       SYNTAX Counter32
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "The total number of recipients specified in all messages
         transmitted since MTA initialization.  Recipients this MTA
         had no responsibility for should not be counted."
       ::= {mtaEntry 9}

   -- MTAs typically group inbound reception, queue storage, and
   -- outbound transmission in some way. In the most extreme case
   -- information will be maintained for each different entity that
   -- receives messages and for each entity the MTA stores messages for
   -- and delivers messages to.  Other MTAs may elect to treat all
   -- reception equally, all queue storage equally, all deliveries
   -- equally, or some combination of this.

   -- In any case, a grouping abstraction is an extremely useful for
   -- breaking down the activities of an MTA. For purposes of labelling
   -- this will be called a "group" in this MIB.


   -- Each group contains all the variables needed to monitor all aspects
   -- of an MTA's operation.  However, the fact that all groups contain
   -- all possible variables does not imply that all groups must use all
   -- possible variables. For example, a single group might be used to
   -- monitor only one kind of event (inbound processing, outbound
   -- processing, or storage). In this sort of configuration all unused
   -- counters would be inaccessible; e.g., returning either a
   -- noSuchName error (for an SNMPv1 get), or a noSuchInstance
   -- exception (for an SNMPv2 get).

   -- Groups are not necessarily mutually exclusive. A given event may
   -- be recorded by more than one group, a message may be seen as
   -- stored by more than one group, and so on.  Groups should be all
   -- inclusive, however: if groups are implemented all aspects of an
   -- MTA's operation should be registered in at least one group. This
   -- freedom lets implementors use different sets of groups to
   -- provide differents "views" of an MTA.

   -- The possibility of overlap between groups means that summing
   -- variables across groups may not produce values equal to those in
   -- the mtaTable. mtaTable should always provide accurate information
   -- about the MTA as a whole.

   -- The term "channel" is often used in MTA implementations; channels
   -- are usually, but not always, equivalent to a group. However,
   -- this MIB does not use the term "channel" because there is no
   -- requirement that an MTA supporting this MIB has to map its
   -- "channel" abstraction one-to-one onto the MIB's group abstration.

   mtaGroupTable OBJECT-TYPE
       SYNTAX SEQUENCE OF MtaGroupEntry
       MAX-ACCESS not-accessible
       STATUS current
       DESCRIPTION
         "The table holding information specific to each MTA group."
       ::= {mta 2}

   mtaGroupEntry OBJECT-TYPE
       SYNTAX MtaGroupEntry
       MAX-ACCESS not-accessible
       STATUS current
       DESCRIPTION
         "The entry associated with each MTA group."
       INDEX {applIndex, mtaGroupIndex}
       ::= {mtaGroupTable 1}


   MtaGroupEntry ::= SEQUENCE {
       mtaGroupIndex
           INTEGER,
       mtaGroupReceivedMessages
           Counter32,
       mtaGroupRejectedMessages
           Counter32,
       mtaGroupStoredMessages
           Gauge32,
       mtaGroupTransmittedMessages
           Counter32,
       mtaGroupReceivedVolume
           Counter32,
       mtaGroupStoredVolume
           Gauge32,
       mtaGroupTransmittedVolume
           Counter32,
       mtaGroupReceivedRecipients
           Counter32,
       mtaGroupStoredRecipients
           Gauge32,
       mtaGroupTransmittedRecipients
           Counter32,
       mtaGroupOldestMessageStored
           TimeInterval,
       mtaGroupInboundAssociations
           Gauge32,
       mtaGroupOutboundAssociations
           Gauge32,
       mtaGroupAccumulatedInboundAssociations
           Counter32,
       mtaGroupAccumulatedOutboundAssociations
           Counter32,
       mtaGroupLastInboundActivity
           TimeInterval,
       mtaGroupLastOutboundActivity
           TimeInterval,
       mtaGroupRejectedInboundAssociations
           Counter32,
       mtaGroupFailedOutboundAssociations
           Counter32,
       mtaGroupInboundRejectionReason
           DisplayString,
       mtaGroupOutboundConnectFailureReason
           DisplayString,
       mtaGroupScheduledRetry
           TimeInterval,
       mtaGroupMailProtocol


           OBJECT IDENTIFIER,
       mtaGroupName
           DisplayString
   }

   mtaGroupIndex OBJECT-TYPE
       SYNTAX INTEGER (1..2147483647)
       MAX-ACCESS not-accessible
       STATUS current
       DESCRIPTION
         "The index associated with a group for a given MTA."
       ::= {mtaGroupEntry 1}

   mtaGroupReceivedMessages OBJECT-TYPE
       SYNTAX Counter32
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "The number of messages received to this group since MTA
         initialization."
       ::= {mtaGroupEntry 2}

   mtaGroupRejectedMessages OBJECT-TYPE
       SYNTAX Counter32
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "The number of messages rejected by this group since MTA
         initialization."
       ::= {mtaGroupEntry 3}

   mtaGroupStoredMessages OBJECT-TYPE
       SYNTAX Gauge32
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "The total number of messages currently stored in this
         group's queue."
       ::= {mtaGroupEntry 4}

   mtaGroupTransmittedMessages OBJECT-TYPE
       SYNTAX Counter32
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "The number of messages transmitted by this group since MTA
         initialization."
       ::= {mtaGroupEntry 5}


   mtaGroupReceivedVolume OBJECT-TYPE
       SYNTAX Counter32
       UNITS "K-octets"
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "The total volume of messages received to this group since
         MTA initialization, measured in kilo-octets.  This volume
         should include all transferred data that is logically above
         the mail transport protocol level.  For example, an
         SMTP-based MTA should use the number of kilo-octets in the
         message header and body, while an X.400-based MTA should use
         the number of kilo-octets of P2 data."
       ::= {mtaGroupEntry 6}

   mtaGroupStoredVolume OBJECT-TYPE
       SYNTAX Gauge32
       UNITS "K-octets"
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "The total volume of messages currently stored in this
         group's queue, measured in kilo-octets.  This volume should
         include all stored data that is logically above the mail
         transport protocol level.  For example, an SMTP-based
         MTA should use the number of kilo-octets in the message
         header and body, while an X.400-based MTA would use the
         number of kilo-octets of P2 data."
       ::= {mtaGroupEntry 7}

   mtaGroupTransmittedVolume OBJECT-TYPE
       SYNTAX Counter32
       UNITS "K-octets"
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "The total volume of messages transmitted by this group
         since MTA initialization, measured in kilo-octets.  This
         volume should include all transferred data that is logically
         above the mail transport protocol level.  For example, an
         SMTP-based MTA should use the number of kilo-octets in the
         message header and body, while an X.400-based MTA should use
         the number of kilo-octets of P2 data."
       ::= {mtaGroupEntry 8}


   mtaGroupReceivedRecipients OBJECT-TYPE
       SYNTAX Counter32
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "The total number of recipients specified in all messages
         received to this group since MTA initialization.
         Recipients this MTA had no responsibility for should not
         be counted."
       ::= {mtaGroupEntry 9}

   mtaGroupStoredRecipients OBJECT-TYPE
       SYNTAX Gauge32
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "The total number of recipients specified in all messages
         currently stored in this group's queue.  Recipients this
         MTA had no responsibility for should not be counted."
       ::= {mtaGroupEntry 10}

   mtaGroupTransmittedRecipients OBJECT-TYPE
       SYNTAX Counter32
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "The total number of recipients specified in all messages
         transmitted by this group since MTA initialization.
         Recipients this MTA had no responsibility for should not
         be counted."
       ::= {mtaGroupEntry 11}

   mtaGroupOldestMessageStored OBJECT-TYPE
       SYNTAX TimeInterval
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "Time since the oldest message in this group's queue was
          placed in the queue."
       ::= {mtaGroupEntry 12}


   mtaGroupInboundAssociations OBJECT-TYPE
       SYNTAX Gauge32
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "The number of current associations to the group, where the
          group is the responder."
       ::= {mtaGroupEntry 13}

   mtaGroupOutboundAssociations OBJECT-TYPE
       SYNTAX Gauge32
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "The number of current associations to the group, where the
         group is the initiator."
       ::= {mtaGroupEntry 14}

   mtaGroupAccumulatedInboundAssociations OBJECT-TYPE
       SYNTAX Counter32
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "The total number of associations to the group since MTA
         initialization, where the group is the responder."
       ::= {mtaGroupEntry 15}

   mtaGroupAccumulatedOutboundAssociations OBJECT-TYPE
       SYNTAX Counter32
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "The total number of associations from the group since MTA
          initialization, where the group was the initiator."
       ::= {mtaGroupEntry 16}

   mtaGroupLastInboundActivity OBJECT-TYPE
       SYNTAX TimeInterval
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "Time since the last time that this group had an active
         inbound association for purposes of message reception."
       ::= {mtaGroupEntry 17}


   mtaGroupLastOutboundActivity OBJECT-TYPE
       SYNTAX TimeInterval
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "Time since the last time that this group had an
         outbound association for purposes of message delivery."
       ::= {mtaGroupEntry 18}

   mtaGroupRejectedInboundAssociations OBJECT-TYPE
       SYNTAX Counter32
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "The total number of inbound associations the group has
         rejected, since MTA initialization."
       ::= {mtaGroupEntry 19}

   mtaGroupFailedOutboundAssociations OBJECT-TYPE
       SYNTAX Counter32
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "The total number associations where the group was the
         initiator and association establishment has failed,
         since MTA initialization."
       ::= {mtaGroupEntry 20}

   mtaGroupInboundRejectionReason OBJECT-TYPE
       SYNTAX DisplayString
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "The failure reason, if any, for the last association this
         group refused to respond to. An empty string indicates that
         the last attempt was successful.  If no association attempt
         has been made since the MTA was initializaed the value
         should be 'never'."
       ::= {mtaGroupEntry 21}


   mtaGroupOutboundConnectFailureReason OBJECT-TYPE
       SYNTAX DisplayString
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "The failure reason, if any, for the last association attempt
         this group initiated. An empty string indicates that the last
         attempt was successful.  If no association attempt has been
         made since the MTA was initialized the value should be
         'never'."
       ::= {mtaGroupEntry 22}

   mtaGroupScheduledRetry OBJECT-TYPE
       SYNTAX TimeInterval
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "The time when this group is scheduled to next attempt to
          make an association."
       ::= {mtaGroupEntry 23}

   mtaGroupMailProtocol OBJECT-TYPE
       SYNTAX OBJECT IDENTIFIER
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "An identification of the protocol being used by this group.
         For an group employing OSI protocols, this will be the
         Application Context.  For Internet applications, the IANA
         maintains a registry of the OIDs which correspond to well-known
         message transfer protocols.  If the application protocol is
         not listed in the registry, an OID value of the form
         {applTCPProtoID port} or {applUDProtoID port} are used for
         TCP-based and UDP-based protocols, respectively.  In either
         case 'port' corresponds to the primary port number being
         used by the group.  applTCPProtoID and applUDPProtoID are
         defined in [5]."
       ::= {mtaGroupEntry 24}


   mtaGroupName OBJECT-TYPE
       SYNTAX DisplayString
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "A descriptive name for the group. If this group connects to
         a single remote MTA this should be the name of that MTA. If
         this in turn is an Internet MTA this should be the domain name.
         For an OSI MTA it should be the string encoded distinguished
         name of the managed object using the format defined in RFC-1485.
         For X.400(1984) MTAs which do not have a Distinguished Name,
         the RFC-1327 syntax 'mta in globalid' should be used."
       ::= {mtaGroupEntry 25}

   mtaGroupAssociationTable OBJECT-TYPE
       SYNTAX SEQUENCE OF MtaGroupAssociationEntry
       MAX-ACCESS not-accessible
       STATUS current
       DESCRIPTION
         "The table holding information regarding the associations
          for each MTA group."
       ::= {mta 3}

   mtaGroupAssociationEntry OBJECT-TYPE
       SYNTAX MtaGroupAssociationEntry
       MAX-ACCESS not-accessible
       STATUS current
       DESCRIPTION
         "The entry holding information regarding the associations
          for each MTA group."
       INDEX {applIndex, mtaGroupIndex, mtaGroupAssociationIndex}
       ::= {mtaGroupAssociationTable 1}

   MtaGroupAssociationEntry ::= SEQUENCE {
       mtaGroupAssociationIndex
           INTEGER
   }

   mtaGroupAssociationIndex OBJECT-TYPE
       SYNTAX INTEGER (1..2147483647)
       MAX-ACCESS read-only
       STATUS current
       DESCRIPTION
         "Reference into association table to allow correlation of
          this group's active associations with the association table."
       ::= {mtaGroupAssociationEntry 1}


   -- Conformance information

   mtaConformance OBJECT IDENTIFIER ::= {mta 4}

   mtaGroups      OBJECT IDENTIFIER ::= {mtaConformance 1}
   mtaCompliances OBJECT IDENTIFIER ::= {mtaConformance 2}

   -- Compliance statements

   mtaCompliance MODULE-COMPLIANCE
       STATUS current
       DESCRIPTION
         "The compliance statement for SNMPv2 entities which
          implement the Mail Monitoring MIB for basic
          monitoring of MTAs."
       MODULE  -- this module
         MANDATORY-GROUPS {mtaGroup}
       ::= {mtaCompliances 1}

   mtaAssocCompliance MODULE-COMPLIANCE
       STATUS current
       DESCRIPTION
         "The compliance statement for SNMPv2 entities which
          implement the Mail Monitoring MIB for monitoring of
          MTAs and their associations."
       MODULE  -- this module
         MANDATORY-GROUPS {mtaGroup, mtaAssocGroup}
       ::= {mtaCompliances 2}


   -- Units of conformance

   mtaGroup OBJECT-GROUP
       OBJECTS {
         mtaReceivedMessages, mtaStoredMessages,
         mtaTransmittedMessages, mtaReceivedVolume, mtaStoredVolume,
         mtaTransmittedVolume, mtaReceivedRecipients,
         mtaStoredRecipients, mtaTransmittedRecipients,
         mtaGroupReceivedMessages, mtaGroupRejectedMessages,
         mtaGroupStoredMessages, mtaGroupTransmittedMessages,
         mtaGroupReceivedVolume, mtaGroupStoredVolume,
         mtaGroupTransmittedVolume, mtaGroupReceivedRecipients,
         mtaGroupStoredRecipients, mtaGroupTransmittedRecipients,
         mtaGroupOldestMessageStored, mtaGroupInboundAssociations,
         mtaGroupOutboundAssociations,
         mtaGroupAccumulatedInboundAssociations,
         mtaGroupAccumulatedOutboundAssociations,
         mtaGroupLastInboundActivity, mtaGroupLastOutboundActivity,
         mtaGroupRejectedInboundAssociations,
         mtaGroupFailedOutboundAssociations,
         mtaGroupInboundRejectionReason,
         mtaGroupOutboundConnectFailureReason,
         mtaGroupScheduledRetry, mtaGroupMailProtocol, mtaGroupName}
       STATUS current
       DESCRIPTION
         "A collection of objects providing basic monitoring of MTAs."
       ::= {mtaGroups 1}

   mtaAssocGroup OBJECT-GROUP
       OBJECTS {
         mtaGroupAssociationIndex}
       STATUS current
       DESCRIPTION
         "A collection of objects providing monitoring of MTA
          associations."
       ::= {mtaGroups 2}

END
