Warm Your Domain Before You Send.

Plan on 30 days for a brand-new domain: roughly 5 to 15 emails a day in week one, doubling each week until you reach 80 to 150 a day by week four. A dormant domain with some history can often ramp in two to three weeks. Confirm the result with an inbox placement test before you launch real volume.

Yes. Gmail and Microsoft 365 connect over OAuth, and any other provider connects over standard SMTP and IMAP. The ramp is tuned per receiver: Gmail rewards opens and replies, Outlook watches complaint rates, Yahoo wants steady daily consistency, and Apple Mail leans on authentication because Mail Privacy Protection hides opens. One warmup program covers all of them at once.

Yes, by design. The connection is OAuth only, so we never see or store your password, and you can revoke access from your provider dashboard at any moment. Warmup pauses itself automatically if it detects bounces, blocks, or unusual provider responses. Verifox is SOC 2 Type II audited, and warmup messages stay inside the network of consenting mailboxes; no real contact ever receives one.

Yes, all three, before day one. Authentication tells providers the mail is genuinely yours; without it, even perfect engagement signals get discounted. Run a DMARC, DKIM, and SPF check to confirm your records, then keep DMARC monitoring watching your reports so a record change never silently undoes a month of domain warming.

Not in the first two to three weeks. Promotional blasts mixed into a warmup ramp look exactly like the spike behavior filters punish. Wait until your reputation score stabilizes above 80, then introduce campaigns at moderate volume. Use the quiet weeks to clean your list with the 9-point email verification engine, since 20 to 40% of B2B lists fail at catch-all domains.

Five to fifteen emails a day in week one. That sounds uselessly small, but it is the volume an unknown domain can send without tripping spike detection, and the high reply rate on those few messages is what builds trust. From there the safe pattern is to roughly double each week: 15 to 40, then 40 to 80, then 80 to 150 a day by week four. Verifox handles the schedule automatically.

Partly, and it is worth being straight about this. Mailbox providers are aware that warmup networks exist, and engagement from a pool of cooperating mailboxes carries less weight with them than engagement from your actual customers does.

What it still does reliably is establish a sending pattern: a domain that ramps gradually and gets replies looks nothing like one that appears from nowhere at ten thousand a day. Warmup is the floor, not the ceiling. Real engagement from a verified list is what carries you past it.

Delist first, warm second. Warmup cannot remove a blocklist entry, and sending from a listed domain damages reputation further. Run a free email blacklist check to see exactly which lists name you, work through each delisting process, then start the ramp. Afterwards, automated blacklist monitoring alerts you on the first new hit instead of the first bounced campaign.

After 30 days at target volume you can taper warmup down, but most senders keep a low background level running permanently. Reputation is a moving average: a quiet month, a list-quality slip, or a provider policy change can erode it, and a trickle of guaranteed positive engagement smooths those dips. Check where your mail actually lands anytime with the email deliverability tester.

Your first warmup inbox is included free, no card required, and you can add more inboxes whenever you need them. Additional inboxes and verification credits are priced for your region on the pricing page. Signup also includes 1,000 free verification credits, or 2,500 with a work email, and credits are pay-as-you-go and never expire.

Yes. The REST APIexposes each connected inbox's reputation score, daily send and reply counts, and spam-folder rescues, so you can pipe warmup status into your own dashboards or gate campaign sends on it. AI agents can do the same through our native MCP server with no glue code.