The owner of a website that I'm managing wants to continue hosting through the company he presently uses, but wants the email to go through Yahoo. Updating the MX records through this existing host is easy.
But I've searched everywhere online, as well as Yahoo's own help center, and can't find their small business hosting MX records to save my life.
I would not have thought that possible, typically the MX records route to mail servers like microsoft exchange, Hosted email providers (hotmail/yahoo etc) dont generally allow access to their mail servers.
You should however be able to forward email from firstname.lastname@example.org to any email address.