CONFIGURING MTA PARAMETERS
The MTA is responsible for routing messages received by the Internet Exchange to the intended recipients. You need to
properly send and/or receive messages from the Internet to the mailbox of the intended recipients. MTA configurations
define the Internet host names, Internet domains, message queue directories, log directories and logging levels.
These parameters determine how the messages will be routed and handled by Internet Exchange until they are delivered
to the intended recipient's mailboxes.
To configure the various features of the Internet Exchange MTA, do the following:
- Input values for the following fields:
- Local Internet host name This
refers to the name (e.g. hostname) of the machine running the Internet
Exchange Messaging Server.
- Local Internet domain Local
domain name of the machine (e.g. ima.com) running Internet Exchange.
- Queue directory This field
pertains to the directory (e.g. /var/spool/iems/mqueue for Linux)
where the MTA, stores the configuration databases and the certifier-to-Internet
domain mappings database.
- Temporary directory The location
(e.g. /var/spool/iems/mqueue/tmp for Linux)where the Notes connector
for instance, writes temporary files during the message conversion process.
- Log directory The location
(e.g. /var/log/iems ) where the log file IEMTA.LOG is written.
You can set this directory to a shared directory in the network so that
you can read the file remotely on a user station.
- Select your preferred logging level from the drop-down list. Currently,
you may choose from six levels of logging, namely:
- Errors only This logging level
gives the minimum logging detail. Only events with error conditions are
written in the log file. For example, failed connection attempts to a
client or to another server.
- Warning logging When this logging
level is used, events associated with warning conditions such as when
the server cannot understand a request sent by a client are written in
the log file.
- Message logging This logging
level logs information related to the delivery of messages.
- SMTP sessions When this logging
level is used, all SMTP conversations are logged. Each incoming and outgoing
SMTP command are recorded in the log file.
- Informational This logging
level records events with significant actions that took place, such as
when a user successfully logs on or off, and when a user successfully
creates or renames a mailbox.
- Diagnostic This logging level
applies the most verbose logging useful for debugging purposes. Each step
of a process or task to pinpoint problems is written in the log file.
NOTE: Due to the large
amount of debugging information produced, Diagnostic
logging level is recommended only for situations where very detailed logging
information is required. This is because the extensive logging activity
slows down the operation of the gateway.
- Type your preferred log file size (in bytes) in the Logfile
size text box. This corresponds to the maximum size permitted for the
log file before it is saved to another name and a new log is started. The
default limit is 50,000 bytes, allowing the Windows Notepad application to
read the file. The acceptable values range between 10,240 bytes (10Kb) and
2,000,000,000 bytes (about 2Gb). The default value of zero indicates no limit.
- Tick the Send old logfile to postmaster
check box if you wish old log files to be automatically mailed to the postmaster.
Otherwise, leave the box unchecked.
- Tick the Keep old logfile in disk
check box if you prefer to store the old log files. Otherwise, leave it unchecked.
Activating this option uses disk space very rapidly; you need monitor disk
space regularly.
- Select your preferred Local Character
Set from the drop-down list. This allows a character set identifier
to be tagged to all outgoing mail. For recipients in most Anglo-Saxon countries,
US-ASCII is used. Meanwhile, those located in other countries will have to
choose a different ISO character set. For example, Japanese users should use
ISO-2022-JP.
- After completing the configuration, click the Submit
button to save the settings.