sarah@acme.io
Day 21 · Gmail
18 / 20 sent
Email warmup
Land in the primary inbox.
Connect a mailbox, set a warmup plan, and let skale.email handle gradual ramp-up, replies, and deliverability health while you focus on outbound.
Gmail
Google Workspace
Outlook
you@company.com
Day 14 of warmup
Today's progress
18 / 24 sent
24/day
Volume
31%
Replies
7/7
Health
2–4
Weeks to outbound-ready
Auto
Threaded reply generation
IMAP
Spam folder recovery
Free
Start with your first mailbox
(01) Why warmup
Cold inboxes kill outbound before it starts.
New mailboxes have no sending history. ISPs treat them as risky. Without structured warmup, campaigns land in spam and teams lose weeks rebuilding reputation.
With warmup
Primary inbox
Re: Partnership intro
Re: Quick follow-up
Your outbound sequence
Without warmup
Spam folder
Re: Partnership intro
Re: Quick follow-up
Your outbound sequence
Spam on day one
Fresh domains get filtered aggressively. Your first outbound batch often never reaches the primary tab.
Manual doesn't scale
Sending a few emails by hand across dozens of rep inboxes isn't sustainable for sales teams or agencies.
One bad week ruins the domain
Spike volume too fast and bounce rates climb. Recovery takes longer than getting it right from the start.
(02) The ramp
Reputation builds week by week.
skale.email increases daily send limits on a curve — not a cliff. ISPs see steady, human-like activity with replies mixed in, so your mailbox earns trust before cold outbound scales.
Week 1
5–10 emails/day
Week 2
15–25 emails/day
Week 3–4
40+ emails/day
Ready
Outbound at scale
Send volume ramp
Typical warmup curve
Without warmup
Volume spike → spam folder
With skale.email
Gradual ramp → primary inbox
(03) Workspace
One workspace, every mailbox
The same dashboard your team uses inside the app — aggregate progress, per-inbox health, and activity at a glance.
3 mailboxes warming
42 / 58 sent today
·
72% complete
Sent today
42
72% of 58 planned
Replies
13
31% reply rate
Failed
0
All clear
Spam fixed
2
1 detected today
mike@acme.io
Day 8 · Outlook
12 / 20 sent
alex@acme.io
Day 3 · Gmail
6 / 12 sent
(04) Threads
Replies that look real.
Warmup isn't just sending — it's back-and-forth. skale.email generates threaded replies that mirror how people actually email, so ISPs see engagement, not a one-way blast.
Context-aware topics
Replies match the thread tone and subject — not generic one-liners that look automated.
Natural timing
Responses land within your send window, spaced like a real conversation.
Full audit trail
Every send and reply shows up in the activity feed per mailbox.
Thread · you@company.com
3 messages
W
Warmup pool · 9:14 AM
Hey — saw your team is scaling outbound. Curious what stack you're using for deliverability?
Y
you@company.com · 9:22 AM
We're testing a few tools — why do you ask?
W
Warmup pool · 9:31 AM
Just comparing notes. Happy to share what's worked on our side if useful.
Auto-reply generated
Engagement signal ✓
Warmup plan
you@company.com
Daily limit
24
Ramp target · Day 14
Reply rate
35%
Of warmup sends
Active days
Mon
Tue
Wed
Thu
Fri
Sat
Sun
Send window
9:00 AM – 5:00 PM
· America/New_York
Next scheduled send
Today, 2:15 PM
(05) Automation
Your plan, your schedule.
Set daily limits, active days, send windows, and ramp strategy once. skale.email runs the plan in the background — pause or resume anytime without reconfiguring.
Configure a plan(06) Activity
Every send, logged.
A full timeline of sends, replies, failures, and spam recoveries per mailbox. Filter by event type and spot issues before they affect your domain.
Sends & replies
Track volume trends over time and see reply rates climb as warmup progresses.
Issue detection
Failed sends and spam folder hits surface immediately in the feed.
Per-mailbox history
Drill into any inbox for a complete audit trail of warmup activity.
Activity trend
Sends & replies · last 7 days
Sends
Replies
All
Sends
Replies
Issues
Spam thread recovered
Moved to inbox · warmup pool reply
Reply received
Re: Quick question about your stack
Warmup send
To warmup pool · 18 of 24 today
(07) Health
Know before you scale.
Deliverability diagnostics and automatic spam recovery — so problems get fixed, not ignored.
Inbox health
you@company.com
SPF record
Pass
DKIM signature
Pass
DMARC policy
Pass
Blacklist status
Clear
Spam recovery
Automatic IMAP scan & recovery
1
IMAP scan detects thread in spam
Warmup reply flagged by provider filter
2
Auto-recovery triggered
Message moved back to primary inbox
3
Logged in activity feed
Full audit trail per mailbox
(08) Teams
Built for teams that send at scale.
Whether you're warming up one rep inbox or forty client mailboxes, the workspace gives you a single view of progress, health, and issues.
Sales & SDR teams
Warm up rep inboxes before sequences go live. Keep reply rates high and spam complaints low across every rep.
Outbound agencies
Manage dozens of client mailboxes from one workspace. Pause one account without disrupting the rest of the portfolio.
Founders & solo operators
Set up warmup once. Automated replies and health checks run in the background while you focus on closing deals.
Agency workspace
12 mailboxesclient-a@...
client-b@...
client-c@...
rep-01@...
rep-02@...
rep-03@...
rep-04@...
rep-05@...
rep-06@...
Needs attention
9 active · 2 ramping · 1 paused
847 sends this week
(09) FAQ
Common questions
Straight answers about email warmup and getting started with skale.email.
What is email warmup?
Email warmup gradually increases send volume from a new or inactive mailbox. It builds sender reputation with ISPs so your outbound emails reach the primary inbox instead of spam. Read the full guide.
How long should I warm up a new inbox?
Most mailboxes need two to four weeks of consistent activity before cold outbound at scale. skale.email automates the ramp so you don't guess daily limits. See the step-by-step plan.
Does email warmup actually work?
Yes, when done with proper authentication, gradual ramps, and healthy list quality. Warmup improves reputation but cannot compensate for poor data or spammy copy. Read the breakdown.
What is the best email warmup tool?
The best tool gives you safe ramp controls, realistic threaded engagement, and inbox health visibility across all mailboxes. Use this selection checklist.
Which email providers do you support?
Gmail and Google Workspace via OAuth. Outlook and other IMAP providers via SMTP with app passwords or standard credentials. Read the Gmail warmup guide.
Does warmup affect my existing emails?
Warmup runs on a schedule you define. Sends stay within your daily limits and active hours, so normal mailbox use is not disrupted.
Ready to warm up your inbox?
Connect a mailbox and start building sender reputation today. No credit card required.