Cisco Cisco Email Security Appliance C650 技术参考

The following example shows diagnostics used to check connectivity to another mail server. You can test 
the mail server by sending a message or pinging the server.

Flushing DNS List cache.

Flushing system ARP cache.

163.17.0.1 (163.17.0.1) deleted

Network reset complete.

mail3.example.com> diagnostic

Choose the operation you want to perform:

- RAID - Disk Verify Utility.

- NETWORK - Network Utilities.

[]> network

Choose the operation you want to perform:

- FLUSH - Flush all network related caches.

- ARPSHOW - Show system ARP cache.

- SMTPPING - Test a remote SMTP server.

[]> smtpping

Enter the hostname or IP address of the SMTP server:

[mail3.example.com]> mail.com

The domain you entered has MX records.

Would you like to select an MX host to test instead? [Y]>y

Select an MX host to test.

1. d1.mail.com

2. d2.mail.com