Email posts to site plugin with option of having external URL in post title?

Does anyone know please whether such a plugin exists? I’ve scoured high and low but can’t find one. What I’m after is the ability to send a post to my site by email, but with some link tags in the email subject line, which WordPress will then take as the post title’s link (rather than using a page link/permalink on the WordPress site itself). If it doesn’t exist, I’d be happy to explore the prospect of paying someone out there to write it for me.