How our default settings get you to 90%+ inbox
Reaching the inbox depends on sending behavior: how fast a mailbox ramps, how much it sends, how clean the list is, and how quickly problems are caught. SpamCipher ships that behavior as defaults and guardrails, so the safe way to send is the default way to send. Every number below is the actual product default.
Every mailbox ramps first
A new mailbox starts at 5 sends a day and ramps to its target over its first 14 sending days. The default cap is 40 a day per mailbox, and many teams keep it lower. Providers see a natural, growing sender, never a cold blast.
Volume comes from more mailboxes
Scaling up never means pushing a small mailbox harder. Caps stay per mailbox; you add warmed mailboxes and domains to match your volume, your own or done-for-you, and the sender rotates across them.
Human-paced sending
Each mailbox waits at least 90 seconds between sends, with jitter, inside sending windows that follow the mailbox's own timezone. Bursts are what filters punish, so the scheduler never produces one.
Warm-up runs under your campaigns
Warm-up is not a phase that ends on launch day. A baseline of seed-network engagement keeps running underneath live campaigns, so positive signals keep flowing while you sell.
Only verified addresses get sent to
Lists pass 19-point verification before a campaign touches them, which keeps bounces and spam traps off your domains. A campaign can also be set to require a passing inbox placement test before it launches.
Guardrails act before providers do
Bounce and complaint rates are watched per mailbox and per workspace, with the complaint lines set at Gmail's own published thresholds (0.3% and 0.5%). Trouble is graduated: the mailbox is throttled to a trickle, then paused, and a systemic problem suspends sending entirely, before your domain pays for it.
Placement is measured, not assumed
Seed-based placement tests show where your mail actually lands, per provider, so the loop is closed with data instead of open rates. See how placement testing works.
What the 90%+ promise means
Inbox placement follows sending behavior, and these defaults are that behavior, enforced. Send inside them and 90%+ measured placement is the expected state, not a good month. You can loosen any setting, and the guardrails still catch trouble first.
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