How do eco DTC brands fix email deliverability?
Quick answer
Eco DTC brands fix deliverability by authenticating mail with SPF, DKIM, and DMARC on a branded sending domain, keeping spam complaints below 0.1% and bounces below 2%, and suppressing unengaged subscribers before they damage sender reputation. Gmail and Yahoo require authentication for bulk senders. No welcome flow or impact receipt works if mail lands in spam.
What authentication do you need?
Configure in your DNS provider and ESP (Klaviyo, Omnisend, etc.):
- SPF: lists servers allowed to send for your domain
- DKIM: cryptographic signature proving message integrity
- DMARC: policy for failed checks plus reporting (start with p=none, move to quarantine when stable)
Use a dedicated sending subdomain (e.g. mail.yourbrand.com) and align the from-address domain with the authenticated domain.
How do you maintain list hygiene?
Segment by engagement: Active (opened in 30 days), Warm (31 to 90), Cold (91 to 180), Lapsed (180+). Send campaigns only to Active and Warm. Run re-engagement then sunset flows for Cold and Lapsed. Remove hard bounces immediately.
What content patterns help inbox placement?
Balance text and images, limit link count, avoid all-caps subject lines, and test double opt-in copy for clarity. Proof-led sustainability content performs well when it reads like editorial, not a promotion blast.
How do you monitor deliverability?
Check Google Postmaster Tools weekly, Klaviyo deliverability hub, and spam complaint rate per campaign. If open rates drop suddenly across Gmail, audit authentication before rewriting creative.
Frequently asked questions
Why do only some emails go to spam?
Flows sent from different domains or templates with heavy images and spam-trigger words often perform differently. Check authentication and content per template.
Do sustainability keywords hurt deliverability?
Not directly. Vague promotional language, too many links, and poor engagement hurt more than words like organic or vegan.
How often should eco DTC brands email?
Most brands perform best at 2 to 4 campaigns per month to engaged segments, plus automated flows. Over-mailing unengaged lists raises complaint rates.
What is a healthy spam complaint rate?
Stay below 0.1%. Above 0.3% triggers aggressive filtering at Gmail and Yahoo.