Email autopilot
Per-mailbox sending, warmup, and reply detection that protects your domain.
- ·21-day sigmoid warmup ramp on every new mailbox
- ·Per-mailbox bounce + open + reply rate tracking
- ·Auto-pause on health-score collapse
- ·DMARC + SPF + DKIM monitor with one-click fixes
- ·Bulk-onboard 50–100 mailboxes in 60 seconds
The detail.
Built around mailbox health, not vanity volume
Most cold-email tools treat your mailbox as an unlimited firehose. Autocloz treats it the way Gmail and Microsoft do: a budget, a reputation, and a set of rules that change daily. Every mailbox gets its own send budget, its own bounce window, and its own quiet hours — so a bad domain can never poison the inbox you care about.
Deliverability proof, not promises
Run inbox-placement seed tests on demand and see Gmail/Outlook/Yahoo placement before your campaign goes wide. Live DMARC aggregate reports flow into a single panel so you can spot a forwarder breakage the same day SPF starts failing.
Onboard a mailbox farm in a minute
Paste 100 SMTP credentials, click validate, accept the auto-detected provider presets, and the wizard hands you a per-mailbox warmup plan + DNS health card before you finish your coffee.
vs. Smartlead / Instantly / Lemlist
The honest comparison — what changes when you switch.
Four things you won’t find elsewhere.
Discipline over theatre
We don't sell bot-warmup because bot-warmup doesn't move inbox placement. Sigmoid ramp + real engagement metrics + auto-pause does.
100 mailboxes in 60s
The bulk wizard parallelises OAuth + SMTP handshakes. Onboarding a mailbox farm takes minutes, not afternoons.
DMARC done right
Aggregate report parser bundled. Spot forwarder breakage the same day SPF starts failing — no separate tool.
Auto-pause, not auto-ignore
Bounce-spike detection writes to the audit log + emails the workspace owner. Failures are loud, not silent.
How teams actually use this.
Agency onboarding 30 client mailboxes per week
Pasting 30 SMTP credentials triggers parallel handshake + auto-detect of provider presets (Google / M365 / Zoho / generic SMTP). Each mailbox gets its own 21-day warmup ramp without operator intervention. The AM ships a configured workspace before the welcome call ends.
Founder warming a single mailbox before a campaign
Connect Gmail via OAuth → sigmoid ramp starts at 5 sends/day → seed tests against Gmail/Outlook/Yahoo run weekly. By day 21 the mailbox is sending 75/day with reputation in the green. Most founders see >40% open rates inside week 2.
SDR team caught by a Microsoft 2025 enforcement
When Microsoft tightened bounce-rate enforcement to 3% rolling 7d, the auto-pause threshold (2.5%) kicked in for 2 of 80 mailboxes. The DMARC aggregate report flagged the underlying forwarder issue. The DNS fix shipped that afternoon — no campaign loss.
The full story.
Email autopilot is the foundation of any modern outbound stack — but most tools confuse 'autopilot' with 'fire-and-forget'. Autocloz treats your mailbox as a budget, not a firehose. Every send passes through a per-mailbox cap (configurable hourly/daily), a per-domain pacing rule (so you don't burn one prospect's domain by hammering 8 emails into 8 inboxes), and a global compliance gate (DNC, suppression, unsubscribe injection).
Inbox placement is the metric that actually matters — opens and clicks measure attention only after the email reached the inbox. Autocloz runs weekly seed tests against Gmail, Outlook, and Yahoo; if the mailbox slips into spam, you see it the same week, not the same quarter. The auto-pause threshold (default 2.5% bounce rate, rolling 7-day) catches the most common cause of reputation collapse before it metastasises.
Bulk onboarding is where teams stuck on Smartlead or Instantly lose hours every week. Autocloz's wizard takes 100 SMTP credentials as a CSV paste, parallelises the OAuth/SMTP handshake, auto-detects the provider preset, and hands back a per-mailbox warmup plan + DNS health card. Most agency AMs complete what used to be a half-day onboarding in under 10 minutes.
DMARC enforcement is no longer optional. Gmail and Yahoo's 2024 sender requirements require p=quarantine minimum; Microsoft followed in 2025. Autocloz parses DMARC aggregate reports inline (no separate Postmark / dmarcian subscription) and surfaces failures by source IP — so when a third-party forwarder starts breaking SPF alignment, the same dashboard tells you which mailbox is affected and offers a one-click DNS fix.