Mailivery

Peer-to-peer inbox warmup priced by daily volume, for sales teams running cold outreach.

Mailivery uses a peer-to-peer network of real accounts to send, open, and reply to warmup mail from connected mailboxes, then pulls anything landing in spam back to the primary inbox. Plans are priced on daily warmup volume rather than per inbox, so any number of mailboxes can be connected on any tier. It also reports spam placement and monitors more than seventy blacklists.