Creating your own IMAP commands

James allows defining your own handler packages (logical union). To do that you need to define imapPackages in imapserver.xml configuration file.

Eg:

<imapPackages>org.apache.james.modules.protocols.DefaultImapPackage</imapPackages>
<imapPackages>org.apache.james.examples.imap.PingImapPackages</imapPackages>

Sample configure file: imapserver.xml

Note that when imapPackages is not provided, James will implicit use org.apache.James.modules.protocols.DefaultImapPackage

Running the example

Build the project:

mvn clean install

Drop the jar with dependencies in the James extensions-jars folder.

Then start James.

Running the example with docker compose

Compile:

mvn clean install

Then start James:

docker-compose up

Test with imap package: org.apache.james.examples.imap.PingImapPackages

Command example:

telnet localhost 143
Trying 127.0.0.1...
Connected to localhost.
Escape character is '^]'.
* OK JAMES IMAP4rev1 Server james.local is ready.
a01 LOGIN bob secret
a01 NO LOGIN failed. Invalid login/password.
a02 LOGIN bob@localhost secret
a02 OK LOGIN completed.
A03 PING
* PONG
A03 OK PING completed.