works for me with seamonkey 2.3 Rated 4 out of 5 stars

Works for me with the https://$ADdomain\$login@$exchangeserver/EWS/Exchange.asmx connection string. I add to modify the install.rdf to add support for seamonkey.
Might be a good idea to add default support for seamonkey ?

This review is for a previous version of the add-on (0.17).