Deliverability is the cold emailer's most important asset. Here are 9 tips that actually move the needle.
1. Set Up Authentication First
SPF, DKIM, and DMARC must be configured before you send anything. This is the foundation — skip it and everything else is wasted effort.
2. Use a Separate Domain
Never send cold emails from your primary business domain. Use a dedicated outreach domain (e.g., outreach.yourcompany.com) to protect your main domain's reputation.
3. Warm Up Gradually
New domains start with zero reputation. Ramp up slowly:
- Week 1: 10-15 emails/day
- Week 2: 25-40 emails/day
- Week 3: 50-75 emails/day
- Week 4+: Scale to target volume
4. Rotate Senders
Don't put all your volume through one mailbox. Use 3-5 mailboxes and rotate sends across them.
5. Write Like a Human
Spam filters analyze content. Avoid:
- ALL CAPS
- Excessive punctuation (!!!)
- Spam trigger words
- Heavy HTML formatting
- Multiple links and images
6. Keep Lists Clean
Verify emails before importing. Remove bounces immediately. Don't email generic addresses.
7. Use Spintax
Sending identical content to many recipients is a spam signal. AI spintax creates unique variations that pass content-similarity checks.
8. Respect Sending Limits
Gmail allows ~500 emails/day per account. Google Workspace allows more, but staying under 100/day per mailbox is safest for cold email.
9. Monitor and React
Watch your bounce rate daily. If it spikes above 5%, pause immediately and clean your list. In ClickReach, bounce detection is automatic via IMAP monitoring.
