dockermail-serverjames

Cant connect to Apache James mailserver in Docker container with Tunderbird

I want to set up an Apache James mailserver in a Docker container and connect this to Thunderbird.

I generated the keystore with the following command in the powershell:

keytool -genkeypair -alias myalias -keyalg RSA -keysize 2048 -keystore keystore

Then I started the Docker container with the following command:

docker run --name james_run `
>> -p "25:25" `
>> -p "143:143" `
>> -p "465:465" `
>> -p "993:993" `
>> -v ${PWD}\test\keystore:/root/conf/keystore `
>> apache/james:jpa-latest

Then I added the domain example.com and the user user01@example.com with the password test to the domain. Screenshot of PowerShell

After this, I wanted to connect Thunderbird to the Docker container with the following configuration: Screenshot of Thunderbird configuration 1 Email Address: user01@example.com Password: test

Email Address: user01@example.com
Password: test

INCOMING SERVER
Protocol: IMAP
Hostname: localhost
Port: 143
Connection security: None
Authentification method: Normal password
Username: user01@example.com

OUTGOING SERVER
Hostname: localhost
Port: 25
Connection security: None
Authentification method: Normal password
Username: user01@example.com

I also tried this configuration for IMAPS and SMTPS: Screenshot of Thunderbird configuration 2

Email Address: user01@example.com
Password: test

INCOMING SERVER
Protocol: IMAP
Hostname: localhost
Port: 993
Connection security: SSL/TLS
Authentification method: Normal password
Username: user01@example.com

OUTGOING SERVER
Hostname: localhost
Port: 465
Connection security: SSL/TLS
Authentification method: Normal password
Username: user01@example.com

In the logs after the start, everything seems just fine:

These are the logs for the first configuration:

11:26:59.796 [INFO ] o.a.j.i.n.ImapChannelUpstreamHandler - Connection established from 172.17.0.1

11:26:59.799 [INFO ] o.a.j.p.n.BasicChannelUpstreamHandler - Connection established from 172.17.0.1

11:26:59.799 [INFO ] o.a.j.i.n.ImapChannelUpstreamHandler - Connection closed for 172.17.0.1

11:26:59.801 [INFO ] o.a.j.p.n.BasicChannelUpstreamHandler - Connection closed for 172.17.0.1

11:26:59.801 [INFO ] o.a.j.p.n.BasicChannelUpstreamHandler - Channel closed before we could send in flight messages to the users (ClosedChannelException): null

And for the second configuration:

1:27:52.961 [INFO ] o.a.j.i.n.ImapChannelUpstreamHandler - Connection established from 172.17.0.1

11:27:52.961 [INFO ] o.a.j.p.n.BasicChannelUpstreamHandler - Connection established from 172.17.0.1

11:27:52.962 [INFO ] o.a.j.p.n.BasicChannelUpstreamHandler - Channel closed before we could send in flight messages to the users (ClosedChannelException): null

11:27:52.961 [WARN ] o.a.j.i.n.ImapChannelUpstreamHandler - Error while processing imap request

javax.net.ssl.SSLHandshakeException: Received fatal alert: bad_certificate

at java.base/sun.security.ssl.Alert.createSSLException(Unknown Source)

at java.base/sun.security.ssl.Alert.createSSLException(Unknown Source)

at java.base/sun.security.ssl.TransportContext.fatal(Unknown Source)

at java.base/sun.security.ssl.Alert$AlertConsumer.consume(Unknown Source)

at java.base/sun.security.ssl.TransportContext.dispatch(Unknown Source)

at java.base/sun.security.ssl.SSLTransport.decode(Unknown Source)

at java.base/sun.security.ssl.SSLEngineImpl.decode(Unknown Source)

at java.base/sun.security.ssl.SSLEngineImpl.readRecord(Unknown Source)

at java.base/sun.security.ssl.SSLEngineImpl.unwrap(Unknown Source)

at java.base/sun.security.ssl.SSLEngineImpl.unwrap(Unknown Source)

at java.base/javax.net.ssl.SSLEngine.unwrap(Unknown Source)

at org.jboss.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1219)

at org.jboss.netty.handler.ssl.SslHandler.decode(SslHandler.java:852)

at org.jboss.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:425)

at org.jboss.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:303)

at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)

at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)

at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)

at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268)

at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255)

at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88)

at org.jboss.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108)

at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:337)

at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)

at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)

at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)

at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)

at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

at java.base/java.lang.Thread.run(Unknown Source)

11:27:52.961 [ERROR] o.a.j.p.n.BasicChannelUpstreamHandler - Unable to process request

javax.net.ssl.SSLHandshakeException: Received fatal alert: bad_certificate

at java.base/sun.security.ssl.Alert.createSSLException(Unknown Source)

at java.base/sun.security.ssl.Alert.createSSLException(Unknown Source)

at java.base/sun.security.ssl.TransportContext.fatal(Unknown Source)

at java.base/sun.security.ssl.Alert$AlertConsumer.consume(Unknown Source)

at java.base/sun.security.ssl.TransportContext.dispatch(Unknown Source)

at java.base/sun.security.ssl.SSLTransport.decode(Unknown Source)

at java.base/sun.security.ssl.SSLEngineImpl.decode(Unknown Source)

at java.base/sun.security.ssl.SSLEngineImpl.readRecord(Unknown Source)

at java.base/sun.security.ssl.SSLEngineImpl.unwrap(Unknown Source)

at java.base/sun.security.ssl.SSLEngineImpl.unwrap(Unknown Source)

at java.base/javax.net.ssl.SSLEngine.unwrap(Unknown Source)

at org.jboss.netty.handler.ssl.SslHandler.unwrap(SslHandler.java:1219)

at org.jboss.netty.handler.ssl.SslHandler.decode(SslHandler.java:852)

at org.jboss.netty.handler.codec.frame.FrameDecoder.callDecode(FrameDecoder.java:425)

at org.jboss.netty.handler.codec.frame.FrameDecoder.messageReceived(FrameDecoder.java:303)

at org.jboss.netty.channel.SimpleChannelUpstreamHandler.handleUpstream(SimpleChannelUpstreamHandler.java:70)

at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:564)

at org.jboss.netty.channel.DefaultChannelPipeline.sendUpstream(DefaultChannelPipeline.java:559)

at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:268)

at org.jboss.netty.channel.Channels.fireMessageReceived(Channels.java:255)

at org.jboss.netty.channel.socket.nio.NioWorker.read(NioWorker.java:88)

at org.jboss.netty.channel.socket.nio.AbstractNioWorker.process(AbstractNioWorker.java:108)

at org.jboss.netty.channel.socket.nio.AbstractNioSelector.run(AbstractNioSelector.java:337)

at org.jboss.netty.channel.socket.nio.AbstractNioWorker.run(AbstractNioWorker.java:89)

at org.jboss.netty.channel.socket.nio.NioWorker.run(NioWorker.java:178)

at org.jboss.netty.util.ThreadRenamingRunnable.run(ThreadRenamingRunnable.java:108)

at org.jboss.netty.util.internal.DeadLockProofWorker$1.run(DeadLockProofWorker.java:42)

at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)

at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)

at java.base/java.lang.Thread.run(Unknown Source)

11:27:52.964 [INFO ] o.a.j.i.n.ImapChannelUpstreamHandler - Connection closed for 172.17.0.1

11:27:52.964 [INFO ] o.a.j.p.n.BasicChannelUpstreamHandler - Connection closed for 172.17.0.1

I understand, that the logs for the second configuration indicate, that there is a problem with the SSL-certificate, but I dont know the reason why. Furthermore I dont understand, why the first configuration is not working.

Because I dont know how to continue, I am seeking for your help. Thanks in advance!

I expected, that the Thunderbird configurations would work an that I could test sending mails locally with Thunderbird. After this, I want to connect a Spring Boot backend to the mailserver and test sending mails wie Spring Mail.

Solution

  • I was using port 25 and port 465 for STMP.

    I learned, that they are outdated and that you are using port 587 for SMTP nowadays.

    So by switching the port for STMP to port 587 it worked.