POP3 Service Configuration

POP3 Service enables the user to receive email from mailbox to local email client based on POP3 protocol.

General Settings

IP Address

By default, SMTP/POP3/IMAP4/Remote Object Call services listen on all IP addresses of the server. In most case, you do not have to change this setting. To make the service to listen on specified IP address, you can change the IP Address field like this:

If you only need this service listen on 192.168.0.1,
then just input 192.168.0.1 to IP address.

If you want to bind multiple addresses in this service.

192.168.0.1
192.168.0.2
192.168.0.3
Then input: 192.168.0.1, 192.168.0.2, 192.168.0.3

If you want to bind multiple addresses with different port

192.168.0.1 with 110 port
192.168.0.2 with 110 port
192.168.0.3 with 115 port
Then input: 192.168.0.1 110, 192.168.0.2 110, 192.168.0.3 115

If you also use * to listen on all IP addresses on specified port

Important Notice: Please have your POP3 service always listens on 110 port. 110 is a standard port to accept POP3 connection from email client.

Port

Tcp port to accept the POP3 connection, default is 110.

SSL IP Address

SSL Port

Tcp port to accept the POP3 SSL connection, default is 995.

SSL enabled

Enable or disable SSL connection.

STARTTLS Command

If this option is enabled, email client can switch connection from normal TCP connection to SSL connection in POP3 connection.

Connection Control

Connection control is to block connection to POP3 server from specific subnets or IP addresses. EmailArchitect Email server offers you the following 2 options (Permit List and Deny List):

Only the IP addresses in the list. Only the IP addresses is matched to an item in the list, the user can connect to the POP3 server.
All except the IP addresses in the list. If the IP addresses is matched to an item in the list, the user cannot connect to the POP3 server. (This option is recommended)

Wildcard character (*) or CDIR syntax are available to identify a group of IP addresses. E.g. 192.168.0.* or 202.*. CDIR syntax: E.g. 192.168.0.1/16 represents a group IP addresses from 192.168.0.1~192.168.255.255.

See Also