HotHawk
from $97/moOur pickThe deepest reply routing in cold email, with the API and white-label included earlier.
Where it wins. The Master Inbox catches every reply, including the forwarded and CC’d ones, and routes each to the right rep with round robin and mailbox groups. The official MCP server and REST API are on every plan, not gated like PlusVibe’s API. ClientBox white-label comes in at $247, warmup runs on real Google and Microsoft inboxes, and there is a 7-day free trial.
The trade-off. HotHawk is email-only, there is no built-in lead database or email verification, so you source and verify leads with a separate tool, and the $97 entry sits above PlusVibe’s $37. We put the depth into the sending and the replies, not the lead data.