Xcitium Secure Email Gateway Enterprise

Minimum number of filter processors

Minimum amount of filter processes that the filtering engine should use. Filter processors are threads used to scan and handle mail.

• Fewer processors = Lower resource overhead / slower performance 

Maximum number of filter processors

Maximum amount of filter processes that the filtering engine should use.  Filter processors are threads used to scan and handle mail.

• More processors = Higher resource overhead / better performance

Maximum number of recipients per SMTP transaction

Maximum number of recipients for each incoming SMTP request that comes to Secure Email Gateway.

Incoming SMTP session timeout (seconds)

Timeout duration of each SMTP session.

RBL Timeout (seconds)

If this time is exceeded, the RBL query is canceled and next filter is applied to the e-mail.

Early talker drop time (seconds)

The SMTP server has a waiting time before sending a first greeting message after which the client replys with a HELO or a EHLO command. On receiving this (premature) message before the server sends greetings, then the client could serving spam. The waiting time of SMTP server to send a greeting message is called Early talker drop time.

Reject invalid addresses

If enabled, outgoing mails with invalid address will be rejected.

Queue life time (hour)

Enter the number of hours that a mail can be queued for delivery before it is bounced.

Enable tarpitting

Tarpitting helps thwart spammers by slowing the transmission of bulk emails. If a spammer sends an email to several recipients on your server during one SMTP session, enabling this feature will slow down the communication. Spammers may stop sending emails to your server if the response to their requests is very slow.

Tarpit count

Tarpitting will become active if the number of recipients exceeds the Tarpit count.

Tarpit delay (second)

The number of seconds that Tarpitting will delay the transmission response.

Maximum number of SMTP sessions

Maximum number of concurrent SMTP sessions.

Maximum number of concurrent mail delivery

Maximum number of concurrent messages that can be sent by SMTP server.

Main Filter engine log level

Select the level of main filtering engine event that should be logged. Selecting 'Notice' will log all the levels.