Yes, you can useivolunteer.com’s powerful email capabilities to promote your Event or Organization to volunteers in your Database.  Simply select one or more of your Database Groups to send it to, select when you want to send it, and then author the email.  You are currently limited to five times the number of your subscription slot limit for promotional emails within your subscription.  E.g. 5 times 6,000 for one year would be 30,000 emails.