If Google or lemlist pauses your sending: Reduce daily volume (Settings → Sending limits — a new mailbox sends 30–40 emails/day through lemlist, and total output including lemwarm and manual replies stays under 70/day per provider), set up a custom tracking domain (Settings → Custom tracking domain), disable open tracking on short emails (Campaign Settings → Tracking), and verify DNS records (SPF/DKIM configured). Use Google Workspace (not free Gmail), and after a pause or a flag, restart at about 15/day with a ramp increment of 3 rather than resuming at your old volume. Test with a small batch — if it delivers without warnings, the issue is resolved.

Applies to:

1. Reduce daily sending volume

Go to Settings → Sending limits

A new mailbox sends a maximum of 30–40 emails/day through lemlist. Open at 30, and only move to 40 once a month of clean sending is behind it.

Your total output — lemlist + lemwarm + manual replies — stays under 70/day per provider in every case. If you keep lemwarm at 10/day as your reputation signal, a settled mailbox sits around 40–50/day total, which leaves room for the replies you write by hand.

The ceiling is per provider, not per mailbox: six Google mailboxes share one Google-side reputation, not six independent budgets. Adding mailboxes will not get you around a Google-side block.

✅ Verify: Check Settings → Sending limits — daily quota below limit, schedule doesn't exceed it

2. Set up a custom tracking domain

Go to Settings → Custom tracking domain

Add subdomain (e.g., links.yourdomain.com)

Create DNS records at your domain provider:

Wait for DNS propagation (up to 24 hours)

Verify in lemlist

✅ Verify: Custom tracking domain shows Active status, link tracking works

3. Disable open tracking for short emails

For one-sentence or very short emails:

Go to Campaign Settings → Tracking

Toggle "Track opens" OFF for short email steps

Prevents tracking pixel flagging spam filters

✅ Verify: Toggle is grey/off, short emails deliver normally

4. Use a professional domain with proper DNS

Switch from free Gmail:

Configure DNS records:

SPF, DKIM and DMARC together carry the largest single share of your warm-up score, so broken DNS caps the score no matter how well the mailbox sends.

Check DNS at your domain registrar or use MXToolbox

✅ Verify: DNS tools show SPF and DKIM as valid, test emails reach inbox

5. Restart volume the way a recovering mailbox should

A mailbox that was flagged, blocked, or paused for more than 7 days does not resume at its previous volume. It goes back through a short ramp first.

After an incident:

If the domain itself is brand new: keep the whole domain under 100 emails/day across every mailbox on it combined for the first month.

Avoid trial accounts:

✅ Verify: Campaign reports show a gradual volume increase, no warnings

6. Send clean, compliant content

Avoid spam triggers:

Include required elements:

Use proper list hygiene:

✅ Verify: Spam testing tools show low scores, normal open rates

✓ Campaign schedule within recommended limits, not exceeding quota

✓ Custom tracking domain shows Active, link clicks tracked

✓ Open tracking disabled on short emails, deliverability improved

✓ SPF and DKIM validate successfully, test emails land in inbox

✓ Volume restarted at ~15/day and climbed gradually without new warnings or blocks

✓ A reputation signal is in place — inbox placement 1–2 per month, or lemwarm at 10/day

✓ Content complies with best practices, recipients can unsubscribe

✓ No warning emails from lemlist or Google

Google flags accounts for unusual sending patterns: sudden volume spikes, high bounce rates, missing authentication, or spam-like content. lemlist's monitoring system pauses accounts with risky activity to protect community deliverability.

Prevent this: Maintain consistent sending cadence, respect the caps (30–40/day through lemlist on a new mailbox, under 70/day total per provider), use a custom tracking domain, authenticate with SPF/DKIM/DMARC, avoid free/trial accounts, keep one reputation signal running at all times, and never resume a paused mailbox at its old volume. Low and stable beats high and aggressive: between two numbers inside the range, take the lower one.

Inbox rotation — Spread volume across multiple Google Workspace accounts using lemlist's inbox rotation feature, remembering that mailboxes on the same provider share one reputation budget rather than each getting a fresh one

Multiple domains — Agencies and high-volume senders can use several warmed-up domains to scale safely, each with its own full ramp-up and 14-day stabilization

Email warm-up — Use lemwarm to build domain reputation before scaling, and keep it at 10/day afterwards as your early-warning signal