Comodo KoruMail

Minimum number of filter processors

The lowest amount of processes that Korumail should use to filter mail. Filter processors are threads used to scan and handle mail.

• Fewer processors = Lower resource overhead / slower performance

Maximum number of filter processors

The most filter processes that Korumail should use to filter mail. Filter processors are threads used to scan and handle mail.

• More processors = Higher resource overhead / better performance

Maximum number of recipients per SMTP transaction

The highest number of mailboxes to which Dome Antispam will forward mail per transaction.

Incoming SMTP session timeout (seconds)

Timeout duration of each SMTP session.

RBL Timeout (seconds)

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

Early talker drop time (seconds)

After a client makes a TCP connection, SMTP servers will wait a for short time before sending a greeting message. The client replies with a HELO or a EHLO response.

If the server recieves the response before it sends the greeting, then there is a high chance the client is a spammer. The waiting time before sending the greeting is called 'Early talker drop time'.

We recommend you leave the setting at the default.

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. Tarpits slow communication times with spam servers when they send mail to several of your recipients during one session.

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 'Notset' will log all the levels.