Mass email of people not in database

[Anonymous]

I need to send out an email to users of our software, but I do NOT want them in our database (there are a LOT of them, they would just be marketing suspended and I do not want to go above the 30,000 mark). But I need to send a mass email out to them this afternoon and need to use Marketo to do this. 

Is there a way to send out this email without having the recipients names in the database? If not, what is the best way to do this?

[Anonymous]

Hi Matt,
For Marketo to send an email to someone, they must be a lead within the database.

The best way to do this would be to upload the list of leads into Marketo, send them the email, and then delete the leads from your Database.

Will