With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
ccmSmtpServerStatusTimeStamp
Cisco Call Home Smtp Server Status Time Stamp
1.3.6.1.4.1.9.9.300.1.3.1
This object indicates the time when ccmSmtpServerStatusTable was last updated, either by a SNMP Servers check by ccmSmtpServerStatusInitiate or by a change in the SMTP servers configured in ccmSmtpServersTable.
Back to CISCO-CALLHOME-MIB MIB page.
IPHost Network monitor allows you to monitor ccmSmtpServerStatusTimeStamp on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco mobile switches right now.