I think it is better to move the following sentence
to the beginning ;-) of send-pr man page. 

> However,
> +you may need to configure outgoing mail delivery beforehand for proper
> +operation.  To make things easier you can fill in a problem report
> +and find more information about the whole process in the following web
> +page: http://www.NetBSD.org/Misc/send-pr.html

-- 
Best regards, Aleksey Cheusov.