Protocol

advanced_protocol_extensions

Field	Description
Enable SSL/TLS	This option lets you enable or disable the SSL/TLS engine. It is enabled by default. It is used by all protocols SMTP, POP, etc. depending on client and port defined there.
Enable IPv6 Protocol	This option enables IPv6 protocol support. IceWarp Server supports the IPv6 protocol completely, including AAAA DNS records and IPv6 service binding.
Enable Daytime server (Port)	IceWarp Server can act as a time server for your whole network, allowing you to keep the time synchronized on all your network servers and PCs. Specify which port IceWarp Server will listen on, the default port is 13.
Enable Daytime clock synchronization	When checked, IceWarp Server will synchronize itself with an Internet-based atomic clock on a regular basis.
Enable Change password protocol	This option allows a user to change his password, via the POP3 protocol. The user's mail client must support the feature. You will also need to manually bind POP3/IMAP to port 106 to use this feature.

protocol_special

Field

Description

Multi CPU support

If your server is multi CPU this option allows IceWarp Server to utilize these capabilities.

This can significantly improve IceWarp Server's performance on medium to high load servers.

Multithreaded ODBC (Thread pooling)

Check the box to use multiple threads for database activity, and enter the number of threads to use.

advanced_protocol_sasl

This section lists all SASL mechanisms (including GSSAPI – SSO/Kerberos authentication). With these settings, you can control the published mechanisms for SMTP, POP3 and IMAP protocols. Mail clients detect these mechanisms and automatically choose the best security for authentication.

Field	Description
PLAIN	Tick the box to enable plain text authentication (not encrypted).
LOGIN	Tick the box if you want to enable the Login authentication (base-64 encryption).
DIGEST-MD5	Tick the box if you want to enable the Digest-MD5 authentication. (For more information, refer to RFC 2831.)
CRAM-MD5	Tick the box if you want to enable the CRAM-MD5 authentication. (For more information, refer to RFC 2195.)
NTLM	Tick the box to enable NT LAN Manager (Microsoft Windows) authentication.
GSSAPI	Tick the box to enable Single Sign-On authentication.
Disable plain authentication for all services	Tick the box to prohibit plain authentication for all services. NOTE: This check box overrides both PLAIN and LOGIN check boxes.