Deliverability is earned, not configured once. This checklist keeps your sender reputation strong over time.
Authenticate Everything
Set up SPF, DKIM, and DMARC on your sending domain in Brevo, with DMARC aligned to your From domain. Send from a branded domain, never a free mailbox. This is the non-negotiable foundation.
Protect Sender Reputation
- Warm up new domains and IPs gradually.
- Keep sending volume and cadence consistent. Reputation rewards predictability.
- Keep spam complaints under 0.3% and bounces low.
Keep the List Clean
- Use confirmed or genuine opt-in only. Never buy lists.
- Remove hard bounces immediately and permanently.
- Apply a sunset policy: stop mailing contacts inactive for 6 to 12 months, or move them to a re-engagement flow first.
Send to Engaged People
Inbox providers weigh engagement heavily. Because Tajo syncs real Shopify purchase and browsing data into Brevo, you can target buyers and recent visitors instead of the entire list. Smaller, engaged sends outperform large cold ones.
Optimize Content and Cadence
- One clear purpose and call to action per email.
- Balanced text-to-image ratio, working links, no spam-trigger subject lines.
- A predictable schedule beats sporadic large blasts.
Monitor and React
Track delivery, open, complaint, and bounce rates per campaign. A sudden drop usually means an authentication change or a list-quality problem. Check your domain and IP against major blocklists if placement falls.
Deliverability Checklist
- ✅ SPF, DKIM, DMARC verified and aligned
- ✅ Branded From domain
- ✅ One-click unsubscribe present
- ✅ Bounces and complaints under control
- ✅ Sunset policy active
- ✅ Sending to engaged segments
- ✅ Consistent volume and cadence
If mail is already filtered, start with emails going to spam.