Administration

Advanced Tab

Purpose

To configure advanced properties of i-Mail

General Options

Memory buffer size for file copy

Default: 4kb

Specify the amount of memory you would like i-Mail to use for copying files between directories. The higher the value, the faster i-Mail will work. You must have sufficient free memory on your server to handle large memory blocks. Leave this at default if a) you have limited memory or b) most of your messages are small text messages.

Log file write method

Default: Exclusive

This option sets the method which i-Mial writes the log file. In exclusive mode the log file is kept open, reducing the amount of disk activity and system resources required for log events. Open & Close mode opens the file each time a log event needs to be written. If the log file does not exist, Open & Close will re-create the file.

Use Open & Close method if you want to be able to archive off or delete the log file without restarting i-Mail.

TCP send packet size

Default: 4096

Use the send packet size to overcome problems with operating systems and routers that do not properly implement the OSI stack and have problems receiving more data at the TCP layer that the physical packet size permits. This problem normally presents itself in SMTP sends by a link which starts sending data, gets to a fixed value each time, say 65536 bytes, and stops responding causing a timeout and disconnect within i-Mail