Specifications

Crestron e-control Mail SW-MAIL
9 •• Introduction Installation & Reference Guide — Doc. 5798
NOTE: “Connected via TCP/IP” means any node (computer) visible on the Local Area Network
(LAN). If the LAN is connected to the Internet, this could include any node visible anywhere on the
Internet. Since a node can also see itself, this implies that multiple services can run on the same
machine. For example, the gateway and the server can be “self-hosted” in this way.
The server is also connected to the e-mail host via TCP/IP (which can also be self-
hosted on the same machine, although this is not normally the case).
The e-mail host is actually comprised of two separate pieces of software, one for
incoming mail (a POP3 server ) and one for outgoing mail (an SMTP server). While
these software generally reside on the same physical computer (host), this is not
always the case. Whatever the case, we generally use the term host herein to refer to
both of them as a single entity. (Nevertheless, it should be pointed out that if your
application requires only sending mail or only receiving mail, you only need to be
connected to one server or the other.)
In the illustrations that follow, the communication pathways are represented by the
arrows. The physical network is not represented, however.
System block diagram, showing communication pathways (all connections using TCP/IP)
VT-3500 VT-3500 VT-3500
e-Mail
Host
Crestron
Software
Server
Crestron
CNX
Gateway
Crestron
control
system
Crestron
control
system
Internet
VT-3500 VT-3500 VT-3500