Hello everyone

Maybe you have a hint for me where to look for a solution.
I started to use "decanter" to send emails for error logging. 

I started to use the following features:
   <feature>decanter-collector-log</feature>
   <feature>decanter-appender-log</feature>
   <feature>decanter-alerting-email</feature>

... configured a simple rule in "org.apache.karaf.decanter.alerting.service.cfg"
   rule.error="{'condition':'message:*','level':'ERROR'}"

... and configured my email server in 
"org.apache.karaf.decanter.alerting.email.cfg"

But when decanter tries to send an email the following error is logged:

Caused by: javax.activation.UnsupportedDataTypeException: text/plain
      at javax.activation.DataHandler.writeTo(DataHandler.java:75) 
~[org.apache.servicemix.specs.activation-api-1.2.1-1.2.1_3.jar:1.2.1_3]
      at javax.mail.internet.MimeBodyPart.writeTo(MimeBodyPart.java:1694) ~[?:?]
      at javax.mail.internet.MimeMessage.writeTo(MimeMessage.java:1913) ~[?:?]
      at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1315) 
~[?:?]


Does anyone have an idea what is missing? 
I am a little bit confused and could not find any source of information about 
this problem.

I am using karaf 4.4.3, decanter 2.10.0, camel 3.20.2

karaf@root()> feature:list | grep decanter | grep Started
decanter-common                         (0x 2.10.0           │          │ 
Started     │ karaf-decanter-2.10.0             │ Karaf Decanter API
decanter-collector-log                  (0x 2.10.0           │          │ 
Started     │ karaf-decanter-2.10.0             │ Karaf Decanter Log Messages 
Collector
decanter-appender-log                   (0x 2.10.0           │          │ 
Started     │ karaf-decanter-2.10.0             │ Karaf Decanter Log Appender
decanter-alerting-core                  (0x 2.10.0           │          │ 
Started     │ karaf-decanter-2.10.0             │ Karaf Decanter Alerting core
decanter-alerting-email-core            (0x 2.10.0           │          │ 
Started     │ karaf-decanter-2.10.0             │ Karaf Decanter alerting email 
alerter core
decanter-alerting-email                 (0x 2.10.0           │          │ 
Started     │ karaf-decanter-2.10.0             │ Karaf Decanter alerting email 
alerter

Thanx for any help
Bert Speckels

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