Bring your own mailboxes
Connect Gmail, Microsoft 365, or any SMTP/IMAP mailbox. Coordinate sends across a pool with weighted rotation.
Everything you need to send
safely and at scale.
One deliverability-first engine: connect your mailboxes, warm them up, protect their reputation, and measure what humans actually do.
Mailbox warm-up
Your own mailboxes exchange real, labeled messages to build genuine sending history — intra-workspace, never a shared pool.
Layered health scoring
Separate reputation for mailbox, sending domain, DKIM domain, and IP — scored over 7- and 30-day windows with automatic slow-downs.
Human-verified engagement
Bot-aware open, click, and verified-visit tracking so you can tell real interest from security-scanner noise.
Built-in spam-score check
Score any draft with SpamAssassin before you send. A clear meter shows how likely it is to be filtered and which rules would trip — so you fix it in the editor, not in the spam folder.
Multi-step sequences
Rich-text emails with variables and fallbacks, thread-aware follow-ups, and send windows in the recipient's timezone.
Stops on reply
Replies, bounces, and unsubscribes stop the sequence and suppress the address automatically — no accidental follow-ups.
AI copywriting
Draft a full sequence from a short brief, or write and rewrite any single step — always scoped to your campaign. Included on every paid plan.
Deliverability tooling
SPF / DKIM / DMARC setup and validation, classified provider errors, and seed-inbox placement tracking.