SMTP Service Extension for 8bit-MIMEtransport
E805482
SMTP Service Extension for 8bit-MIMEtransport is an Internet standard that defines how SMTP can be extended to support the transmission of 8-bit MIME message bodies without requiring conversion to 7-bit format.
All labels observed (4)
| Label | Occurrences |
|---|---|
| 8BITMIME | 1 |
| SMTP Service Extension for 8-bit MIME transport | 1 |
| SMTP Service Extension for 8bit-MIMEtransport canonical | 1 |
| SMTP Service Extensions | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T9548173 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: SMTP Service Extension for 8bit-MIMEtransport Context triple: [RFC 1652, title, SMTP Service Extension for 8bit-MIMEtransport]
-
A.
SMTP Service Extension for Secure SMTP over Transport Layer Security
SMTP Service Extension for Secure SMTP over Transport Layer Security is an IETF standard (RFC 3207) that defines how to use TLS to provide encryption and secure authentication for SMTP email transmissions.
-
B.
SMTP
SMTP (Simple Mail Transfer Protocol) is a standard communication protocol used for sending and routing email messages across IP networks.
-
C.
MIME
MIME (Multipurpose Internet Mail Extensions) is an internet standard that extends the format of email to support text in character sets beyond ASCII, as well as attachments like images, audio, video, and application files.
-
D.
Courier MTA
Courier MTA is a modular, open-source mail transfer agent for Unix-like systems known for its integrated mail services and focus on reliability and scalability.
-
E.
IETF ESMTP Working Group
The IETF ESMTP Working Group was a standards body team within the Internet Engineering Task Force responsible for developing and extending the Extended Simple Mail Transfer Protocol used for modern email transmission.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: SMTP Service Extension for 8bit-MIMEtransport Target entity description: SMTP Service Extension for 8bit-MIMEtransport is an Internet standard that defines how SMTP can be extended to support the transmission of 8-bit MIME message bodies without requiring conversion to 7-bit format.
-
A.
SMTP Service Extension for Secure SMTP over Transport Layer Security
SMTP Service Extension for Secure SMTP over Transport Layer Security is an IETF standard (RFC 3207) that defines how to use TLS to provide encryption and secure authentication for SMTP email transmissions.
-
B.
SMTP
SMTP (Simple Mail Transfer Protocol) is a standard communication protocol used for sending and routing email messages across IP networks.
-
C.
MIME
MIME (Multipurpose Internet Mail Extensions) is an internet standard that extends the format of email to support text in character sets beyond ASCII, as well as attachments like images, audio, video, and application files.
-
D.
Courier MTA
Courier MTA is a modular, open-source mail transfer agent for Unix-like systems known for its integrated mail services and focus on reliability and scalability.
-
E.
IETF ESMTP Working Group
The IETF ESMTP Working Group was a standards body team within the Internet Engineering Task Force responsible for developing and extending the Extended Simple Mail Transfer Protocol used for modern email transmission.
- F. None of above. chosen
Statements (43)
| Predicate | Object |
|---|---|
| instanceOf |
Internet standard
ⓘ
SMTP extension ⓘ email protocol specification ⓘ |
| appliesTo |
message body
ⓘ
message content ⓘ |
| area |
Internet messaging
ⓘ
email ⓘ |
| avoids |
conversion of 8-bit data to 7-bit encodings such as quoted-printable
ⓘ
conversion of 8-bit data to base64 ⓘ |
| basedOn | ESMTP extension model NERFINISHED ⓘ |
| category | Standards Track ⓘ |
| compatibleWith | MIME content-transfer-encoding 8bit ⓘ |
| constraint | does not guarantee end-to-end 8-bit support beyond advertising hops ⓘ |
| definesBehaviorFor |
clients when 8BITMIME is not advertised
ⓘ
servers that receive 8-bit data without advertising 8BITMIME ⓘ |
| definesKeyword | 8BITMIME ⓘ |
| documentType | RFC NERFINISHED ⓘ |
| doesNotChange |
SMTP command set other than capability advertisement
ⓘ
SMTP envelope semantics ⓘ |
| extendsProtocol |
SMTP
NERFINISHED
ⓘ
Simple Mail Transfer Protocol NERFINISHED ⓘ |
| influenced | later SMTP extensions for internationalization ⓘ |
| intendedUse | Internet email transmission ⓘ |
| obsoletesRequirement | strict 7-bit message body limitation in SMTP ⓘ |
| primaryGoal | allow transmission of 8-bit MIME message bodies without conversion to 7-bit ⓘ |
| publishedBy | Internet Engineering Task Force ⓘ |
| relatedTo |
MIME
NERFINISHED
ⓘ
Message Format for Internet Mail (RFC 822 / RFC 5322) NERFINISHED ⓘ Multipurpose Internet Mail Extensions NERFINISHED ⓘ SMTP Service Extensions framework NERFINISHED ⓘ |
| requires |
8-bit clean transport path between SMTP peers
ⓘ
SMTP client detection of 8BITMIME support via EHLO ⓘ SMTP server advertisement of 8BITMIME capability ⓘ |
| shortName | 8BITMIME extension ⓘ |
| specifies | maximum transparency for octets with the high bit set in message bodies ⓘ |
| standardizedIn | RFC 1652 NERFINISHED ⓘ |
| standardizes |
negotiation of 8-bit message body transport
ⓘ
use of 8BITMIME keyword in EHLO response ⓘ |
| status | Proposed Standard ⓘ |
| supports |
8-bit MIME message bodies
ⓘ
8-bit character data in message content ⓘ |
| usesCommand | EHLO ⓘ |
| yearIntroduced | 1994 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: SMTP Service Extension for 8bit-MIMEtransport Description of subject: SMTP Service Extension for 8bit-MIMEtransport is an Internet standard that defines how SMTP can be extended to support the transmission of 8-bit MIME message bodies without requiring conversion to 7-bit format.
Referenced by (4)
Full triples — surface form annotated when it differs from this entity's canonical label.
this entity surface form:
SMTP Service Extension for 8-bit MIME transport
this entity surface form:
8BITMIME