With IPHost Network Monitor you can run simple snmp requests against a Cisco device in your network.
callHomeSmtpServerPort
call Home Smtp Server Port
1.3.6.1.4.1.9.9.300.1.1.20
Port of the SMTP server.
Back to CISCO-CALLHOME-MIB MIB page.
IPHost Network monitor allows you to monitor callHomeSmtpServerPort on Cisco device via the SNMP protocol. Download IPHost Network Monitor (500 monitors for 30 days, 50 monitors free forever) to start monitoring Cisco multiplexers right now.