Email deliverability
Contact-form notifications fail when DNS authentication is wrong. These guides cover SPF, DKIM, DMARC, and common provider setups so receivers trust mail from your domain.
6 articles
- DKIM signing explainedDomainKeys Identified Mail: cryptographic signatures, selectors, and DNS TXT publishing.
- DMARC explainedDMARC builds on SPF and DKIM, adds alignment rules, and enables aggregate and forensic reporting.
- Google Workspace: SPF and DKIMHigh-level steps to publish Google’s SPF include and DKIM keys for your primary domain.
- Microsoft 365: enable DKIMEnable DKIM for Microsoft 365 custom domains and publish CNAME records as instructed.
- SPF records explainedWhat Sender Policy Framework does for contact-form and domain mail, how SPF TXT records work, and why only one v=spf1 string should exist per hostname.
- Using SPF, DKIM, and DMARC togetherA practical order of operations and checks when enabling authentication for outbound mail.