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What is content transfer encoding quoted-printable?
Quoted-Printable, or QP encoding, is a binary-to-text encoding system using printable ASCII characters (alphanumeric and the equals sign = ) to transmit 8-bit data over a 7-bit data path or, generally, over a medium which is not 8-bit clean. It is defined as a MIME content transfer encoding for use in e-mail.
How do you encode a quoted-printable?
The format of a quoted-printable message is simple. The encoder converts any character that must be escaped to an equal sign (=) followed by the character’s ASCII value in hexadecimal. For example, a VT character (ASCII value 11) is represented as =0B and a DEL character (ASCII value 127) is represented as =7F.
What is MIME decoder?
MIME::Decoder – an object for decoding the body part of a MIME stream.
What is content transfer encoding?
Content transfer encoding defines encoding methods for transforming binary email message data into the US-ASCII plain text format. This transformation allows the message to travel through older SMTP messaging servers that only support messages in US-ASCII text. Content transfer encoding is defined in RFC 2045.
Is content Transfer-Encoding required?
The definition of new content-transfer- encodings is explicitly discouraged and should only occur when absolutely necessary. All content-transfer-encoding namespace except that beginning with “X-” is explicitly reserved to the IANA for future use.
Is Transfer-Encoding mandatory?
This clearly indicates that it is not required to be sent. With Transfer-Encoding the standard states: The Transfer-Encoding general-header field indicates what (if any) type of transformation has been applied to the message body in order to safely transfer it between the sender and the recipient.
What is 3D in HTML?
It is just an email encoding system called quoted-printable. This allows non-ASCII characters to be represented as ASCII for email transportation. In quoted-printable, any non-standard email octets are represented as an = sign. So, 3D are the hex digits corresponding to =’s ASCII value (61).
What does MIME stand for?
Multipurpose Internet Mail Extensions
The abbreviation MIME stands for Multipurpose Internet Mail Extensions and refers to a media or content type on the internet. With MIME, the data contained in an internet message can be clearly classified as it would in an email or in a HTTP message.
Is transfer encoding mandatory?
Is content transfer encoding required?
How to encode and decode a quoted printable?
Help for: Encode/Decode Quoted Printable Quoted Printable is a protocol used for emails and maps characters in such a way that emails do not cause conflicts to old email servers. To encode a regular text to Quoted Printable, type in the box on top and click the Encode button.
Which is the header field for Content Transfer Encoding?
5 The Content-Transfer-Encoding Header Field 1 5.1 Quoted-Printable Content-Transfer-Encoding. The Quoted-Printable encoding is intended to represent data that largely consists of octets that correspond to printable characters in the ASCII character set. 2 5.2 Base64 Content-Transfer-Encoding. 3 Table 1: The Base64 Alphabet.
Is there a way to decode Q encoded headers?
This is used to decode “Q”-encoded headers as described in RFC 1522: “MIME (Multipurpose Internet Mail Extensions) Part Two: Message Header Extensions for Non-ASCII Text”.
What does body mean in Content Transfer Encoding?
Content-Type: text/plain; charset=ISO-8859-1 Content-transfer-encoding: base64 This should be interpreted to mean that the body is a base64 ASCII encoding of data that was originally in ISO-8859-1, and will be in that character set again after decoding.