Package com.mimecast.robin.smtp.extension.client

Class ClientStartTls

java.lang.Object

com.mimecast.robin.smtp.extension.client.ClientProcessor

com.mimecast.robin.smtp.extension.client.ClientStartTls

public class ClientStartTls
extends ClientProcessor

STARTTLS extension processor with DANE and MTA-STS enforcement.

Per RFC 7672 and RFC 8461, TLS is MANDATORY when DANE or MTA-STS policies are active.
If the server doesn't advertise STARTTLS but a security policy requires it, the connection MUST fail.

See Also:

• RFC 7672 - DANE for SMTP
• RFC 8461 - MTA-STS

Field Summary

Fields

Modifier and Type	Field	Description
private static final org.apache.logging.log4j.Logger	log

Fields inherited from class com.mimecast.robin.smtp.extension.client.ClientProcessor

connection

Constructor Summary

Constructors

Constructor	Description
ClientStartTls()

Method Summary

Modifier and Type	Method	Description
boolean	process(Connection connection)	STARTTLS processor with security policy enforcement.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

log

private static final org.apache.logging.log4j.Logger log

Constructor Details

ClientStartTls

public ClientStartTls()

Method Details

process

public boolean process(Connection connection)
                throws IOException

STARTTLS processor with security policy enforcement.

Enforces mandatory TLS for DANE and MTA-STS policies per RFCs.

Overrides:

process in class ClientProcessor

Parameters:

connection - Connection instance.

Returns:

Boolean.

Throws:

IOException - Unable to communicate.