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Configuring the POP3 Server
- In IMail Administrator, select localhost in the left panel.
- Expand the Services folder and select POP3. The POP3 tab appears in the right panel.
- Each option is described below.
- Click Apply to save your changes.
- After making changes, stop the service, wait 5-10 seconds and restart the service. Any changes that you make are saved as soon as you click Stop/Start.
Logging Options
In the Log To box, select the way you want to log POP3 events:
- sysMMDD.TXT. Select to send event information to a file of this name where MM is the month and DD is the day the log was written. This file is stored in the Spool directory.
- No Log. Select to turn off event logging.
- App Log. Select to send event information to the Windows Application Log (viewed with the Windows Event Viewer)
- Log Server. Select to send event information to the Log Server file indicated on the Log Files tab.
Other Options
Debug Messages. Select to write debug messages to the log file. This option is resource intensive.
Use APOP. Select to secure user authorization (password encryption). For more information, see RFC 1939.
Note: APOP works with the IMail Server database only. Enable XTND XMIT command. Select for the IMail server to accept outbound mail sent via XTND XMIT. (Clients such as WinQVT/Net require this functionality.)
Allow remote password changes. Select to enable internal commands that allow remote password changes with older mail clients (such as an older version of Eudora).
Auto-deny possible hack attempts. When selected, if more than 512 characters are sent in an POP3 command, other than the POP3 DATA command, the remote IP address is temporarily put in the "deny access" (Control Access file) until you stop and restart the IMail service. If more than 512 characters are sent in a command, other than the POP3 DATA command, the data appears to the IMail server as an attempt to "hack" into the server. The IP address is not displayed in the Control Access list, but it is reported in the log file.
Enable Dedicated SSL Listener. Select to enable a dedicated port that accepts only SSL encrypted connections from the POP3 service. You can change the default port used by the SSL Listener in the SSL Port box.
SSL Port. (default port is 995) Enter the port used by the dedicated SSL Listener to accept connections.
Enable TLS. Select to enable the POP3 service to accept SSL/TLS connections over the POP3 port through use of the STARTTLS command.
Server Status. A status message to the left of the Start/Stop button shows the version number, and whether or not the service is running. The button switches between Start and Stop depending on whether or not the service is running.
Advanced Options
When logging on to POP3, the service returns a welcome message that identifies the mail server version, vendor and operating system. Changing the message may help protect your server from spammer or hacker attacks. You can use the POP3 Advanced tab to change the service welcome message, if you wanted to hide the above mentioned information.
Change the POP3 Hello Message
Click on the Advanced tab and enter the text you want to be displayed in the POP3 service welcome message. The text is limited to 400 characters. If over 400 characters are entered, the default message is used. When APOP is enabled, if the message plus the timestamp exceed 400 characters, the message will be truncated. To revert to the default IMail welcome message, clear this setting.
 Ipswitch, Inc. http://www.ipswitch.com |
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