Does Pepipost provide dedicated IPs? Do I need to pay extra for them?

Yes, Netcore Email API provides dedicated IP at a mere cost of $20 per month.

Note 1: We recommend using a dedicated IP address only if your volume is more than 10K per day.
Note 2: If Subaccount requires a dedicated IP for their account to send emails, they can put in a request to Master offline as only the Master account has authority to request for dedicated IPs.