4 questions answered.
How long does warmup take?
Plan on 3–6 weeks for a brand-new mailbox to reach a stable warmed state. We ramp +1 / day from a 10 / day start with a 40 / day ceiling.
Do free and premium pools mix?
No. Free-pool mailboxes never silently appear in the premium pool. Dedicated workers still participate in the premium pool by default.
What gets a mailbox quarantined?
Spam-folder placement of 20% or more on at least 20 warmup sends in 7 days, a complaint rate of 0.10% or more, or a bounce rate of 5% or more on at least 100 deliveries in 30 days. Deleting or marking pool warmup mail as spam blocks the mailbox.
Can I keep warming after I start cold sending?
Yes, and you should. Warmup should keep running even after campaigns begin.
4 questions answered.
What is the per-mailbox cap?
Default 50 cold emails / day with a 10-minute minimum gap. You can lower it. You can raise it, but anything above 50 / day requires positive reputation signals.
How do you spread sending across IPs?
One worker per machine, each with its own IP. We distribute mailboxes across workers and assign campaign sends round-robin across the chosen sender pool.
Do you offer dedicated IPs?
Yes, on Enterprise. A dedicated worker comes with its own IP and is allocated to a single organisation.
What providers do you support?
Google Workspace / Gmail, Microsoft 365 / Outlook, and any SMTP / IMAP provider. iCloud and Zoho are first-class too.
3 questions answered.
How accurate is reply detection?
Reply detection survives quoted text, signatures, "sent from" footers, and forwarded threads. OOO and unsubscribe replies are classified separately.
Can I unify several mailboxes in one view?
Yes, that is the whole point. Filters, search and assignment span every connected mailbox.
Are open and click trackers reliable?
Honestly: opens are noisy because of Apple Mail Privacy and image proxies. We surface opens but never use them for deliverability decisions.
4 questions answered.
Where is data stored?
The database is in the United States (Neon, AWS us-east-1) and the app runs in Ashburn, Virginia (Fly.io). Message bodies and attachments are kept in Tigris object storage.
How is mailbox auth stored?
OAuth tokens and mailbox passwords are encrypted with AES-GCM before they are stored, under a key held outside the database.
Do you have SOC 2?
Not yet. The Trust page describes our encryption, access controls and subprocessors.
Do you sign DPAs?
Yes. Ask through the contact page and we will turn it around within 48 hours.
4 questions answered.
Do you charge per email?
No. Each plan includes a fixed daily send budget. Unused volume does not carry over.
What if I disconnect a mailbox mid-month?
Charges are prorated. Reconnecting in the same period does not double-bill you.
Refund policy?
Full refund within 14 days of a paid purchase if the platform did not work for you.
Startup discount?
50% off Professional for one year for pre-seed and seed companies on YC, Antler, EF, Techstars or similar.