πŸ“§ Email Delivery (SMTP) Not configured

By default, campaigns are sent from outreach@colderos-2.polsia.app. Configure your own SMTP to send from a custom address. Credentials are encrypted and stored securely.

For Gmail, use an App Password β€” not your regular password.

Send Health
Sender domain
β€”
Host
β€”
Port
β€”
Auth
SMTP AUTHi
Heads up: Port 587 is the modern standard with TLS. Port 465 is legacy SSL. Port 25 is usually blocked by ISPs. Username + password = SMTP AUTHi. Colder stores the password encrypted with AES-256 (see routes/settings.js lines 11–36).
πŸ“… Booking Link Not set

Drop in your Calendly, Cal.com, or SavvyCal link so leads can self-book a call without bouncing emails back and forth. Once set, a "πŸ“… Book a Call" link surfaces in the menu on every page.

Works with Calendly, Cal.com, SavvyCal, or any public booking URL. Must be https://….

Not set β€” leads who reply interested will need to email you to book.

πŸ›‘οΈ Sending Domain Health No check yet

Live status of the three DNSi records receiving mail servers check before delivering your cold email. Colder runs the lookup through Google + Cloudflare DNS-over-HTTPS and persists the result.

SPFi
Tells receiving mail servers which IPs are allowed to send mail for your domain.
Pending
DKIMi
A digital signature on outgoing mail that proves the message really came from your domain.
Pending
DMARCi
Tells receiving mail servers what to do when SPF or DKIM fail β€” and where to send reports.
Pending
Your sending's MX recordi is separate from SPF/DKIM/DMARC β€” MX only controls where incoming mail lands. For outbound cold email deliverability, SPF + DKIM + DMARC is what matters.
πŸ”₯ Domain Warmup

New sending domains have no reputation with mailbox providers β€” Gmail and Outlook don't yet "trust" you, so cold emails land in spam until you earn it. Warmup is the deliberate process of building that trust by sending small, gradually increasing volumes of legitimate mail that recipients actually engage with.

Daily volume ramp (per inbox)
Week 1: 10–20 emails/day
Week 2: 30–50 emails/day
Week 3: 60–100 emails/day
Week 4+: up to your target β€” most coaches top out around 100–150/day per inbox
Warmup services

A warmup service sends and replies to test emails on your behalf from a network of real inboxes, generating the engagement signals mailbox providers look for. Run one for 2–3 weeks before scaling outbound.

Popular options: Instantly Β· Warmbox Β· Lemwarm Β· Mailreach
Colder doesn't bundle warmup β€” your sending reputation is yours to manage, since campaigns route through your own SMTP. (See the deliverability card above for the DNS prerequisites.)
What to avoid
βœ• Blasting 100+ emails/day from a brand-new domain on day one β€” the fastest path to spam folder
βœ• Skipping the DNS check above (SPF/DKIM/DMARC must pass before warmup matters)
βœ• Warming from your primary domain β€” use a subdomain like go.yourco.com to insulate your brand's reputation
βœ• Buying scraped lists during warmup β€” low-engagement sends hurt you
βœ• Skipping replies β€” warmup only works if the test emails generate real opens and replies; if reply rate stalls, scale back
For coaches: most coaching outreach is 30–80 prospects per week, not 500. Two warmup weeks + one new subdomain is usually enough β€” you don't need enterprise infrastructure.
πŸš€ First Cold Campaign β€” Playbook

A coaching journey from signup to your first 10 cold emails β€” plain English, no SDR jargon. Each step drops you straight into the part of Colder that handles it.

  1. Verify your sending domain.

    SPF, DKIM and DMARC must all pass or most of your emails will land in spam.

    Open the Deliverability Wizard β†’
  2. Warm up for ~10 days.

    Start at 10–20 emails a day and ramp gradually so Gmail and Outlook learn to trust you.

    See Warmup Guide β†’
  3. Import a small list of leads.

    Drop a CSV with 10–50 prospects into the upload box on your dashboard.

    Go to CSV Import β†’
  4. Load the Day 1 / Day 3 / Day 7 follow-up sequence.

    Three short emails, spaced out, sent automatically. The sequence auto-pauses the moment a prospect replies.

    Open Dashboard β†’
  5. Watch your Reply Inbox.

    Every reply lands in one place β€” read it, mark it, reply back without leaving Colder.

    Open Replies β†’
πŸ’¬ Reply Inbox
β€” replies captured Β· β€” open and waiting on you

Whenever a prospect replies to one of your cold emails, Colder captures it in the unified Inbox and auto-pauses any pending follow-ups for that thread.

What lives here: full thread view (your sent email, their reply, your outbound replies), reply-status pipeline (open β†’ meeting booked / not interested / follow up later), one-click outbound reply using your SMTP credentials.
πŸ” Sequences
β€” campaigns Β· β€” active Β· β€” include timed follow-ups

Each campaign is a sequencei β€” typically one initial email and several timed follow-upsi. Colder schedules them, rate-limits sends, and pauses the rest of the sequence the moment a prospect replies.

Source types you can have:
β€’ user-created β€” built from the dashboard or follow the onboarded wizard.
β€’ BBB follow-up β€” the auto-generated 3-step follow-up (Day 0 β†’ Day 3 β†’ Day 7) wrapped around your enriched Hunter.io leads. See services/bbb-sequence.js and migrations/1751463000000_bbb_followup_sequences.js.
Each step gets a human-readable sequence_label in campaign_emails (e.g. Day 3 β€” Reminder) so you can see which step of the sequence each message is.
πŸ“– Playbooks

A playbooki is a sequence you've built for repeat use β€” the standard pattern: intro β†’ nudge β†’ breakup.

How to use playbooks today: open any campaign from the dashboard, look at its sequence_label steps, and clone that campaign as the starting point for your next outreach run. The follow-up scheduler (followup-scheduler.js) handles the timing β€” you only edit the words.
πŸ“š Help & Onboarding

First-time setup, account questions, recovery β€” all here.

Help guide covers: connecting your SMTP, landing in the inbox, the deliverability wizard, billing and cancellation, and account deletion.
Onboarding walks through industry, location, and ICP so AI drafting can target better.
πŸ›‘οΈ Email Deliverability

Run a live DNSi check on your sending domain. Colder looks up your TXT records through Google and Cloudflare DNS-over-HTTPS and reports pass/warn/fail (see lib/deliverability.js).

The wizard supports a "what to paste into your DNS provider" snippet for Cloudflare, Namecheap, and GoDaddy once it finds a missing record.

Open Deliverability Check
⚠️ Danger Zone

Permanently delete your account and all associated data. This cannot be undone.

Email history, prospect lists, and SMTP credentials are permanently removed; pending outbound emails will not send.