How to set up SPF records
Complete SPF record setup guide, including syntax explanation and best practices
DANE SMTP Configuration Guide
Configure DANE for SMTP with TLSA records to enforce secure delivery
How to Configure MTA-STS in Cloudflare
Set up MTA-STS policy with Cloudflare for secure SMTP delivery
DMARC Aggregate Reports (RUA) Best Practices
Use aggregate data to discover misaligned sources and unauthorized senders.
Overview
Reports reveal pass/fail by source; fix SPF/DKIM and remove unauthorized senders.
Prerequisites
- DMARC policy with
rua
Steps
- Collect reports in DMARC Report Analyzer
- Fix failing sources; adjust policy
pct - Escalate to enforcement when clean
Troubleshooting
- Missing reports: mailbox filtering or
ruaaddress not reachable
FAQ
What about RUF?
Use forensic reports carefully due to privacy; aggregate is usually sufficient.
Validation & Screenshots
DMARC RUA 验证建议执行，截图可选/p>
Gmail: Show Original
- 发送测试邮Show original
- 确认
DMARC: PASS与策略生/li>
Screenshot placeholder: /assets/guides/dmarc-rua/gmail-show-original.png
DMARC Report Analysis
- 收集聚合报告（rua/li>
- DMARC Report Analyzer 分析
Screenshot placeholder: /assets/guides/dmarc-rua/dmarc-report-analysis.png
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