Technical Tip: How to retrieve FortiMail queue count via SNMP

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Description	This article describes how to monitor the FortiMail Queue via SNMP. It is possible to use SNMP to monitor mail count or size by queue. To retrieve the information, it is necessary to compile Fortinet proprietary MIBs as well as Fortinet-supported standard MIBs into the SNMP manager, and then download these MIB files from Fortinet technical support website at Fortinet Support..
Scope	FortiMail.
Solution	Before, it is necessary to enable SNMP on FortiMail as below: System -> Network -> Interface -> Select management port -> Allow SNMP access. System -> Configuration -> SNMP tab -> configure SNMP Community for v1, v2c or User for v3: After that, it is possible to use 'snmpwalk' to run multiple GETNEXT requests automatically. For examples: snmpwalk -v <SNMP version> -c <SNMP community string> <FML MGT IP> <OID> fmlMailQueueIndex: mail queue index .1.3.6.1.4.1.12356.105.1.103.2.1.1.1 (~12) fmlMailQueueName: mail queue name .1.3.6.1.4.1.12356.105.1.103.2.1.2.1 (~12)  fmlMailQueueMailCount: number of emails in mail queue .1.3.6.1.4.1.12356.105.1.103.2.1.3.1 (~12) fmlMailQueueMailSize: size of emails in mail queue in KB .1.3.6.1.4.1.12356.105.1.103.2.1.4.1 (~12)  Related article: Technical Tip: Download FortiOS and FortiCore MIB files