EML — UTF-8 Encoded Subject
An email whose Subject uses RFC 2047 UTF-8 encoded-words (café / crème) — for header decoding tests.
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: base64
From: Brightside Cafe <news@brightside.example>
To: Sam Rivera <sam@meridiansupply.example>
Subject: =?utf-8?b?Q2Fmw6kg4oCUIGNyw6htZSBicsO7bMOpZSB3ZWVrIOKYlQ==?=
Date: Thu, 08 Jan 2026 09:15:00 -0800
Message-ID: <utf8-subj@brightside.example>
Q2Fmw6kgc3BlY2lhbHMgdGhpcyB3ZWVrOiBjcsOobWUgYnLDu2zDqWUgYW5kIG5hw692ZSBsYXR0
ZSBhcnQuCg==
Specifications
- Subject Encoding
- RFC 2047 UTF-8
- Body
- UTF-8 plain
What is a .eml file?
An EML file is a single email message stored in the RFC 822 / MIME format — plain-text headers (From, To, Subject, Date, Message-ID) followed by the body, which may be plain text, HTML, or a multipart structure with alternative bodies and file attachments encoded in base64.
How to use this file
Use an example EML to test email header parsing, MIME decoding, HTML-part handling, attachment extraction, and EML-to-other-format conversion.
How to use this file for testing
“EML — UTF-8 Encoded Subject” is a deterministic Novus Examples fixture for Email parsing, Encoding detection, Internationalization. Standards-compliant RFC 822 messages — plain, multipart text+HTML, and with an attachment — plus an MBOX mailbox, for testing header parsing, MIME decoding, attachment extraction, and mailbox splitting.
Documented properties for this file: EML · 428 bytes. Compare results against paired or grouped companions on this page when present (clean↔damaged, searchable↔scanned, or format twins) so scores stay reproducible across runs.
Download the file once, keep the path stable in CI or local scripts, and treat the spec table as the contract: dimensions, seeds, field lists, and roles are intentional. Corrupt or invalid samples are labelled as such — expect parsers to fail loudly rather than silently accept them.
Email fixtures use fixed dates, message IDs, and MIME boundaries so runs are reproducible, and every address is fictional. Test header parsing, MIME decoding, attachment extraction, and EML/MBOX conversion against the documented structure.
Code examples
from email import policy
from email.parser import BytesParser
msg = BytesParser(policy=policy.default).parse(open("utf8-subject.eml", "rb"))
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Generated by generation/email_wave_c.py. Free for any use, no attribution required — license.