If they've trademarked the name Bookbub, they can go after the scammer for trademark infringement or something like that. In fact, under trademark law, they're obligated to go after infringement if they want to keep the mark.

That has to be a scam.

Does it link to a website? My guess if it does, or they send one later, it will be very subtly wrong, and go to a copy site.

Bookbub don't need to cold send, and certainly don't need marketing consultants. They reject the vast majority of their submissions.

Yes, send Bookbub the email.

I've sent it to BookBub for them to deal with. 

As well as spending a good deal of time deleting unwanted emails offering to market my books, I have now received two emails purporting to be from BookBub. If they are actually soliciting for authors then things are bad, but I suspect it has nothing to do with them.

"Hi there,

I?m Mary, a BookBub marketing consultant based in Georgia. Every day, millions of book lovers visit BookBub to discover new reads they?ll genuinely enjoy and many authors report that BookBub has helped them reach more readers, downloads, and sales.

I?ve taken a look through all your books and your work fits perfectly with the genres BookBub readers are actively engaging with right now.

Would you be open to having your book featured in front of targeted BookBub readers this week, alongside the titles they already love and trust?

Warm regards,
Mary "

If putting the final polish on your manuscript is proving to be too overwhelming a task, I can be of assistance.

At the very least, if you're not having fun, you're probably not producing your best work. Any time something feels like a chore, people tend not to do it as well, even if the effect is largely driven by the subconscious, and we really don't notice it.