Xcitium Secure Email Gateway Enterprise

Delivery Agent

The service forwards the emails processed by Secure Email Gateway to target email server.

SMTP Service

The service that filters emails on hosted domain names on Secure Email Gateway. This service accepts incoming e-mail connections listening to port 25 of SMTP. The SMTP service filters the emails per the settings configured by the administrator (Reverse DNS, RBL, SRN, MX control the White List, Black List, Grey List, etc.) in SMTP level first and then the filtered emails are passed to the next stage - Secure Email Gateway Main Engine for spam and virus analysis.

Submission SMTP Service

Submission port (587), is a mail delivery port as port 25 (SMTP) but it requires additional authentication. If you do not have an account on this server, you cannot send an e-mail.

Main Filtering Engine

The emails that are filtered by 'SMTP Service' are passed to the main filtering engine software that checks for spam and virus in the mails. This module performs the actions specified by administrator such as rejecting, quarantining the infected email or saving the email to another register area or address. If e-mail is required to be sent to recipient then it is forwarded by the Secure Email Gateway Delivery Agent.

Anti-spam Engines

Secure Email Gateway engines scans emails and specifies spam scores controlling thousands of spam signatures such as header and bayesian-based content filtering. This scores are used to define an e-mail as spam.

Syslogd

Snmpd Service

It is a Simple Network Management Protocol (SNMP) agent which binds to port and acts on SNMP management application’s requests and sends the requested information to the requester.

Scheduler Service

This service organizes the programs that runs periodically. This feature in Secure Email Gateway creates periodic reports and graphics about system usage.