Email deliverability for online shops
Even the best email achieves nothing if it lands in spam. This section is about setting up your sender domain with SPF, DKIM and DMARC, and about keeping an eye on your domain’s reputation with Google Postmaster Tools.
Articles in Deliverability
2 articles- Deliverability
Setting up DMARC, SPF and DKIM: improving email deliverability
What SPF, DKIM and DMARC do, how to set the DNS records for Klaviyo and Google Workspace, and which rules Gmail and Yahoo have required since 2024.
- Deliverability
Setting up Google Postmaster Tools: monitor your deliverability
How to set up Google Postmaster Tools, verify your domain via DNS and correctly read spam rate, authentication and encryption at Gmail.
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Who writes about this

Szymon Wolowicz
In email and CRM marketing for e-commerce since 2023. From 2024 to 2025, CRM specialist at ondevi GmbH and MAILODY GmbH working with Klaviyo for D2C brands, and before that his own online shop. Founder of Emailfy since 2025, and from December 2025 to July 2026 also a freelance consultant and account manager at Retention Only, leading projects and teams. Works in his clients’ Klaviyo accounts himself and writes every post from this hands-on experience.

