Deliverability

Inbox placement.
Not vanity volume.

Native mailbox warmup, automatic rotation, reputation monitoring, and fail-safes built into the worker. Your domains stay clean, your emails keep landing.

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Capabilities

Every lever that protects your sender reputation.

Native warmup

White-labeled Mailivery integration warms every mailbox gradually — human-like send/receive patterns that build real sender reputation.

Mailbox rotation

Link multiple Gmail, Outlook, or SMTP mailboxes to one Stalk. Beanstalks rotates across them automatically, respecting per-mailbox daily caps.

Reputation monitoring

Continuous tracking of open rates, bounce rates, and complaint rates per mailbox. Early warning if a domain starts to trend wrong.

Auto daily reset

Daily send counters reset at midnight in the campaign's timezone. Worker handles state persistence, no manual resets required.

Auto-pause on trend break

If a mailbox's bounce or complaint rate spikes, Beanstalks pauses it automatically and alerts you. Your reputation is protected before it's lost.

Sending Health dashboard

Five charts: daily volume, open rate, reply rate, bounce rate, and warmup progress. All per-mailbox and rolled up. Fix issues before they become outages.

Warmup progress

Day 18/35

Today

30/day

Target

50/day

Mailivery warmup · realistic reply patterns

Warmup, done right

A new domain that sends 500 cold emails on day one is dead.

Every mailbox linked to Beanstalks runs through white-labeled Mailivery warmup: realistic send-and-reply patterns with other warmup participants, graduated volume ramps, and reputation scoring. By the time you send cold outreach, your sender reputation is already earned.

  • 5-week automated ramp from 5/day to your daily_limit
  • Realistic reply-and-mark-as-important patterns
  • Per-mailbox warmup_day tracking
  • Pause warmup automatically once you have enough history

Mailbox rotation

Round-robin

mike@fidabio.com

34/50

michael@fidabio.com

28/50

mike.o@fidabio.com

22/50

m.odonovan@fidabio.com

18/50

Next send from most-capacity mailbox

Rotation logic

One Stalk. Many mailboxes. Zero overlap.

Attach 3, 5, or 10 mailboxes to a single Stalk. Beanstalks rotates across them using round-robin with capacity awareness — the mailbox with the most remaining daily budget sends next. Hit a daily cap, that mailbox sits out until tomorrow.

  • Round-robin with capacity-weighted rotation
  • Per-mailbox daily caps (default 50, configurable)
  • Per-Stalk daily caps (prevents one Stalk eating all capacity)
  • Idle-mailbox detection so new mailboxes get ramped in smoothly

Security posture

Live

Production-grade

For biotech data that deserves it

Encryption at restAES-256
Encryption in flightTLS 1.3
Mailbox credentialsEnvelope-sealed
SSO / SAML / SCIMEnterprise
SOC 2 Type IIOn audit path

Fail-safes

The send worker protects you from yourself.

Beanstalks send worker has aggressive fail-safes built in: crash recovery, timezone-aware rescheduling, circuit breakers on consecutive failures, and automatic reauth flagging. A process restart or a Render cold-start never leaves emails stuck.

  • Orphan recovery: any row stuck in sending >10 min resets automatically
  • Timezone-aware reschedule (proper tz math, not server-UTC hacks)
  • Auth-error detection with automatic mailbox reauth flag
  • Circuit breaker: 5 consecutive failures pause the worker and alert you

Sending health

7-day

Open rate

41%

Reply rate

8.2%

Bounce

1.1%

mike@ michael@ +2 more

The dashboard

Sending Health at a glance.

Five charts on one page: daily volume per mailbox, open rate trend, reply rate trend, bounce rate trend, and warmup progress. Per-mailbox and rolled up. If something is drifting, you see it here before it becomes a problem.

  • Daily send volume (stacked per mailbox)
  • Rolling 7-day open, reply, and bounce rates
  • Warmup progress by day for each mailbox in ramp
  • Incident timeline: pauses, warnings, reauths

Keep exploring

More pillars of a biotech Stalk

Lead discovery

500K+ indexed biotech researchers, scored against your ICP.

AI email personalization

Emails that cite the specific paper your prospect published.

Multi-channel outreach

Email, LinkedIn, and travel outreach in one workspace.

Campaign management

Stalks, sequences, autopilot, per-rep pipeline views.

Territory & teams

Map the TAM. Carve the territories. Share the Stalks.

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