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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, as shown below.
- 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. This sends 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 this to turn off the logging of events.
- App Log. This sends event information to the Windows Application Log (viewed with the Windows Event Viewer)
- Log Server. This sends event information to the Log Server file indicated on the Log Files tab.
Other Options
Debug Messages. If this is selected, debug messages are written to the log file. This option is resource intensive if you debug messages in IMAP4.
APOP. Turn this on for secure user authorization (password encryption). For more information, see RFC 1939.
Note: APOP only works using the IMail Server database. Enable XTND XMIT command. When selected, the server accepts outbound mail sent via XTND XMIT. (Clients such as WinQVT/Net require this functionality.)
Allow remote password changes. Certain older mail clients have the ability to use the POP3 protocol to change passwords remotely. This check box is provided for system administrators whose end-users may be using those older applications. (These applications include older version of Eudora)
Auto-deny possible hack attempts. When selected, if more than 512 characters are sent during anything but the SMTP DATA command, the remote IP address is temporarily put in the "deny access" (Control Access) file until you stop and restart the service. Sending more than 512 characters in a command other than the SMTP DATA command would look like an attempt to "hack" into your server. You will not see the address in the "deny access" list, but it is reported in the log file.
Server Status. A status message shows whether or not the
service is running.Start/Stop Service. This button switches between Start and Stop depending on whether 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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