XML(Extensible Markup Language)
A markup language used for structuring data, including DMARC reports and email-related data formats.
Definition
XML (Extensible Markup Language) is a markup language designed for storing and transporting data in a structured, human-readable format. In email marketing, XML is commonly encountered in DMARC aggregate reports, RSS feeds for email content, and data import/export formats. Understanding XML helps you work with email authentication reports and data integration.
Why It Matters
DMARC aggregate reports are delivered in XML format, so understanding XML helps you interpret these critical deliverability reports. Many data integration tasks involve XML. Some email platforms use XML for template definitions or configuration.
How It Works
XML uses tags to define data elements and their relationships. A DMARC report, for example, contains XML tags for report metadata, policies, and individual authentication records. XML parsers and reporting tools convert this structured data into readable formats.
Best Practices
- 1Use DMARC reporting services to parse XML reports automatically
- 2When working with XML exports, validate the format before importing
- 3Keep XML files well-formatted and properly escaped
- 4Use tools rather than manual parsing for complex XML data
Email XML Use Case Table
| Use case | Where XML appears | Why it matters |
|---|---|---|
| DMARC aggregate reports | Reports sent by mailbox providers | Shows authentication pass and fail patterns |
| RSS-powered emails | Content feeds | Lets newsletters pull structured updates |
| Data exports | Legacy ESP or CRM files | Helps migrate subscriber or campaign data |
| API responses | Older integrations | Requires parsing before storing or displaying data |
| Template configuration | Some email systems | Defines reusable content or settings |
DMARC XML Field Table
| XML section | What it describes | Deliverability use |
|---|---|---|
| Report metadata | Organization, report ID, and date range | Confirms source and reporting period |
| Policy published | Your DMARC policy settings | Verifies the policy providers evaluated |
| Record | Sending IP and message count | Identifies who sent mail for your domain |
| SPF result | Whether SPF aligned and passed | Finds SPF authentication issues |
| DKIM result | Whether DKIM aligned and passed | Finds signing or alignment issues |
XML Handling Table
| Task | Recommended approach | Avoid |
|---|---|---|
| Reading DMARC reports | Use a DMARC parser or dashboard | Manually scanning raw XML at scale |
| Importing XML data | Validate schema before import | Assuming every file uses the same structure |
| Transforming XML | Use a parser library | Regex-based parsing for nested data |
| Storing parsed data | Convert key fields into structured database columns | Keeping only raw files with no searchable fields |