Hi Janne, could you please have a look at JSPWIKI-166 and 169 and then wait a bit before releasing 2.6.1?
I'd like to have a final look at it and add an improvement I mentioned in JSPWIKI-102 (improving exception handling and logging regarding usage of JNDI or custom mail). Would be fine if these MailUtil issues could be fixed completely with 2.6.1 final. Regards, Florian