Email (Smtp And Pop3) - JUMO LOGOSCREEN nt Interface Description

6 Ethernet protocols

6.4 Email (SMTP and POP3)

Typical
networking in
the
company
network
Function of the
individual
stations
44
The paperless recorder can transmit Emails (e.g. alarms). In this case, it is the
master (client) and can access SMTP servers at the standard port (25) as well
as POP3 servers at the standard port (110)
Setup PC
IP=x.x.x.x
local
subnet
Gateway
IP=x.x.x.x
Recorder
IP=x.x.x.x
Gateway:
separates local sub-nets from each other and thus filters the packets. Not all
packets are received in every sub-net. Packets from outside the local sub-net
must be addressed to the gateway.
DHCP server:
can automatically assign IP address, sub-net mask and gateway address to
other stations when switching on. These parameters can also be entered
manually, then a DHCP server is not required.
DNS server:
converts symbolic names to IP addresses, e.g. question: "www.name.de" will
generate the "www.name.de has IP=10.12.32.45" response.
POP3 server:
serves to read out received Emails of a mail account. The POP3 mail account
can be accessed after log-in entering user name and password. A successful
log-in process often releases the transmission authorization of a connected
SMTP server.
SMTP server:
serves to transmit Emails. The authorization to transmit Emails via a mail
account must be released in several networks by previously logging in at the
corresponding POP3 server.
Proxy:
serves as a gateway between the local company network and the worldwide
internet. It is also used for the conversion of "local" IP addresses (used in the
company network) to "once-only" IP addresses (used in the internet).
The device software cannot address a proxy!
PC
IP=x.x.x.x
additional
subnets
DHCP
DNS
server
server
IP=x.x.x.x
IP=x.x.x.x
SMTP
POP3
server
server
IP=x.x.x.x
IP=x.x.x.x
Port 25
Port 110
Internet
(worldwide)
Proxy
IP=x.x.x.x