MNS-BB
Software User Guide
-103-
20.0
SMTP (Simple Mail Transfer Protocol)
SMTP (RFC 821) is a TCP/IP protocol used in sending e-mail. However, since it’s limited in its
ability to queue messages at the receiving end, it’s usually used with one of two other protocols,
POP3 or Internet Message Access Protocol that let the user save messages in a server mailbox and
download them periodically from the server. In other words, users typically use a program that uses
SMTP for sending e-mail and either POP3 or IMAP for receiving messages that have been received
for them at their local server.
SMTP is implemented to operate over Transmission Control Protocol (TCP) port 25. The details of
SMTP are in Request for Comments 821 of the Internet Engineering Task Force (IETF).
In LE2425A and LEV2525A switches, SMTP is used to send email alerts whenever there is an event
or an SNMP trap generated inside the switch system.
•
Send email alert according to the configuration rules when a specific event category happens
•
Send email alert according to the configuration rules when a specific trap SNMP trap category
happens
•
Provide configuration and customization commands for users to specify SMTP server to connect
to, TCP ports, user recipients and filters.
20.1
Email Alert Features
The following features are implemented in LE2425A and LEV2525A SMTP Alert Module:
•
SMTP alerts can be enabled or disabled globally.
•
User can defined a global default SMTP server identified by its IP address, TCP port and retry
count.
•
User can add up to five SMTP alert recipients. Each recipient is identified by an ID and email
address.
•
Filters are provided for each recipient to allow only certain categories of traps and events be sent
by email.
•
Each recipient can have its own SMTP server and TCP port number, if this is not defined on a
certain recipient, the default SMTP server and TCP port number is used.
20.2
CLI
Trap and Event email alerts can be enabled through SMTP module.
LE2425A#
smtp
LE2425A(smtp)##
Syntax
:
show smtp
<config|recipients>
config – when this option is chosen, it shows the current SMTP global settings.
recipients – choosing this option shows the currently configured recipients of email alerts.
