Work email keeps going to spam folder on yahoo. Help!!!?

Everytime I or someone from my work sends an email to my yahoo account it is delegated to the spam folder. I have contacted the people at fusemail and they say that is yahoo's fault. I'm concerned that all of the emails I'm sending out for work related purposes are being put in people's spam folders and never read. I have been getting little to no response from my emails so I believe this is definitely the case. Any idea on how we can byp the spam filters or adjust our fusemail account to not be confused as spam