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ELECTRONIC MESSAGINGE-SERVER : INTERNET APPLICATIONS
Ed. 04 1/18Réf. 3EH 21000 BSAA
File
ELECTRONIC MESSAGING
INTRODUCTION
Alcatel OmniPCX Office is used to offer an electronic messaging solution for all users in a company.
To do this, it supports various configurations:
- it can be the company's messaging server,
- it can be integrated into the company network if it already has a messaging server, or
- it can facilitate access to an external messaging server.
These various possible configurations are described below:
PRINCIPLES OF OPERATION
Case 1 : ALCATEL OMNIPCX OFFICE IS THE MESSAGING SERVER
Alcatel OmniPCX Office makes available to each user a local letter box, and manages the flow of mes-
sages between users of the local network and those to and from the Internet. The protocols used by
this server are SMTP, to send messages, and POP3, to manage mail boxes.
Two possibilities must be considered:
- POP3 subscription: the IAP stores the mail messages (POP3 accounts),
- SMTP subscription: the IAP does not store the mail box.
1 - POP3 SUBSCRIPTION: THE IAP STORES THE MAIL MESSAGES (POP3 ACCOUNTS)
Each user has available:
- a private mail box with the IAP,
- a mail box on Alcatel OmniPCX Office (local).
It is Alcatel OmniPCX Office messaging server that downloads the mail to the local mail boxes for each
IAP connection or at pre-defined time intervals.
This principle, called POP3 caching, is used to optimise connections to the IAP: a user is not authorised
to access his mail box directly with the FAI (since this would automatically create a connection), he has
access only to his local mail box.
For the description of the available Email addresses (Stand alone, PO3 or SMPTP subs-
cription), see the ANNEX 2 at the end of this file.
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