Hello! Can anyone share with me how their sales users are able to use the mass email sends for transactional purposes? Essentially, we are using the standard 'email opt out' field to record when someone hasn't opted into marketing emails. As we are entitled to contact someone for a transactional email, or an email with legitimate business interest even if they didn't opt in to marketing emails, how is the best way to do this en masse? For a bit of background:

• We are lightning users.
• Mass sends using Lists and Campaigns all honour the email opt out check box.
• We have Sales Cloud and Marketing Cloud.
• Our sales users do NOT use Marketing Cloud.
• We have Marketing Cloud Connect, but before exploring using that, I wanted to see what our options are with just Sales Cloud. 
• Unlike Marketing Cloud, Sales Cloud does not have a standard transactional/commercial send classification (I believe).
• We are based in the UK, but we have global offices and global customers, and are aware of our regional obligations.

Hope the above helps with context! 

Thanks

Kirsty