Here is a topic for your reference: http://cwiki.apache.org/GMOxDOC21/sendmail-using-geronimos-default-javamail-session.html
If you could elaborate the exact steps when you deployed the connector on Geronimo, it would do more help.
I am trying to deploy the sample JEE connector mailconnector.rar. However I
am getting an error message telling me that "A connector module must be
deployed using a Geronimo deployment plan".
I went to Geronimo documentation (for version 2.1) and there I found that
the "The geronimo-ra.xml deployment plan is an optional file". If so, why am
I getting the above error for not having the geronimo-ra.xml file when such
a file is optional?
I also tried to install the same connector on GlassFish and the connector
was deployed successfully. The reason why I am mentioning this is NOT to
compare the two, but rather as assurance that the connector is packaged
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