Trump Campaign Selling Hannity's book

Somehow the Trump campaign got my e-mail address, and they send me all their fundraising fodder. And I do mean all, to the tune of 15-20 e-mails per day.

Over the last two days I’ve received four e-mails - from campaign-specific e-mail addresses - advertising Sean Hannity’s book. One even offered me early access to the text.

Can this really be a legal use of campaign funds?