Apps :: sylpheed auto opens junkmail

When I receive mail and rightclick a mail to delete, it auto opens the next mail..what I want is to delete the junkmail ( or anymail) without opening . how is this done..I can not find any means in the preferences. thanks

Ok..no takers on that..I did notice that it has an option to not open exe attachments..so that is comforting..maby it does not matter that it opens the junk before deletion. I do not have to read them. : )

original here.