there is a workaround -- which is to configure a custom email sender for SC and use one of the "sendmail" clones. SC is built to allow you to do this, and i believe lanux128 on the forum does this.-mouser
i lifted the example on the sendEmail (http://caspian.dotconf.net/menu/Software/SendEmail/) website and put it in the option provided by Screenshot Captor. btw sendEmail enables TLS by default.
%APPDIR%Tools\sendEmail\sendEmail.exe -f "your@emailhere.com" -t "%to%" -u "%subject%" -m "%body%" -s smtp.yourserverhere.com:587 -xu "your@emailhere.com" -xp "yourpasswordhere" -a "%file%"