All MIBs › NSMAIL-MIB › mtaReceivedMessages
mtaReceivedMessages
Module: NSMAIL-MIB
OID (symbolic): NSMAIL-MIB::mtaReceivedMessages
OID (numeric): 1.3.6.1.4.1.1450.5.2.1.1
Node type: OBJECT-TYPE
Type: Counter32
Access: read-only
Description: The total number of messages received since MTA Initialization.
What is mtaReceivedMessages?
This counter tracks the total number of messages the mail transfer agent has received since it was last initialized. An admin watches this value to gauge inbound mail load and to spot sudden traffic spikes that could indicate a spam surge or misconfigured relay. If the counter jumps from 10,000 to 50,000 within an hour, that signals an abnormal influx worth investigating.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.1450.5.2.1.1 snmpwalk -v2c -c public <target> NSMAIL-MIB::mtaReceivedMessages
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.1450.5.2.1.1.1 snmpget -v2c -c public <target> NSMAIL-MIB::mtaReceivedMessages.1
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OID Breakdown
Upper-level ancestors (7 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.1450 | netscape | NETSCAPE-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.1450.5 | nsmail | NSMAIL-MIB |
| 1.3.6.1.4.1.1450.5.2 | mtaTable | NSMAIL-MIB |
| 1.3.6.1.4.1.1450.5.2.1 | mtaEntry | NSMAIL-MIB |
| 1.3.6.1.4.1.1450.5.2.1.1 | mtaReceivedMessages | NSMAIL-MIB |