Hallo zusammen, ich hab mal wieder ein Problem und hoffe auf eure Hilfe.

Habe das "Mail-Eingang Überwachung" Plugin nun mal in Betrieb nehmen wollen und es will einfach ned. Benutzername, Passwort usw usw alles soweit eingetragen, wobei ich mir nicht zu 100% sicher bin was den Ordnernamen angeht aber 99% sind es schon.
IMAP unterstützt SSL, SMTP aber nicht, versenden kann ich nur über TLS (sollte aber keine Rolle spielen?)

Server liefert folgende Fehlermeldung:

Code:
09.10.2013 - 12:00:23.343 INFO  InputPool - Input-Plugin neu gestartet: Mail-Eingang Überwachung
09.10.2013 - 12:00:23.343 INFO  MailInput - Mail-Überwachung gestartet
09.10.2013 - 12:00:23.593 ERROR MailInput - sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
javax.mail.MessagingException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
	at com.sun.mail.imap.IMAPStore.protocolConnect(IMAPStore.java:665) ~[firEmergency.jar:na]
	at javax.mail.Service.connect(Service.java:317) ~[firEmergency.jar:na]
	at javax.mail.Service.connect(Service.java:176) ~[firEmergency.jar:na]
	at javax.mail.Service.connect(Service.java:125) ~[firEmergency.jar:na]
	at mailInput.MailInput.connectToStore(MailInput.java:167) ~[MailInput.jar:na]
	at mailInput.MailInput.run(MailInput.java:111) ~[MailInput.jar:na]
Caused by: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
	at com.sun.net.ssl.internal.ssl.Alerts.getSSLException(Unknown Source) ~[na:1.6]
	at com.sun.net.ssl.internal.ssl.SSLSocketImpl.fatal(Unknown Source) ~[na:1.6]
	at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Unknown Source) ~[na:1.6]
	at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Unknown Source) ~[na:1.6]
	at com.sun.net.ssl.internal.ssl.ClientHandshaker.serverCertificate(Unknown Source) ~[na:1.6]
	at com.sun.net.ssl.internal.ssl.ClientHandshaker.processMessage(Unknown Source) ~[na:1.6]
	at com.sun.net.ssl.internal.ssl.Handshaker.processLoop(Unknown Source) ~[na:1.6]
	at com.sun.net.ssl.internal.ssl.Handshaker.process_record(Unknown Source) ~[na:1.6]
	at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(Unknown Source) ~[na:1.6]
	at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source) ~[na:1.6]
	at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(Unknown Source) ~[na:1.6]
	at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(Unknown Source) ~[na:1.6]
	at com.sun.mail.util.SocketFetcher.configureSSLSocket(SocketFetcher.java:507) ~[firEmergency.jar:na]
	at com.sun.mail.util.SocketFetcher.getSocket(SocketFetcher.java:238) ~[firEmergency.jar:na]
	at com.sun.mail.iap.Protocol.<init>(Protocol.java:113) ~[firEmergency.jar:na]
	at com.sun.mail.imap.protocol.IMAPProtocol.<init>(IMAPProtocol.java:110) ~[firEmergency.jar:na]
	at com.sun.mail.imap.IMAPStore.protocolConnect(IMAPStore.java:632) ~[firEmergency.jar:na]
	... 5 common frames omitted
Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
	at sun.security.validator.PKIXValidator.doBuild(Unknown Source) ~[na:1.6.0_45]
	at sun.security.validator.PKIXValidator.engineValidate(Unknown Source) ~[na:1.6.0_45]
	at sun.security.validator.Validator.validate(Unknown Source) ~[na:1.6.0_45]
	at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.validate(Unknown Source) ~[na:1.6]
	at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source) ~[na:1.6]
	at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source) ~[na:1.6]
	... 18 common frames omitted
Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target
	at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source) ~[na:1.6.0_45]
	at java.security.cert.CertPathBuilder.build(Unknown Source) ~[na:1.6.0_45]
	... 24 common frames omitted
Gruß
feuerwehrle