Quoted-printable

Quoted-Printable, or QP encoding, is a <a href="/facts/Binary-to-text_encoding/InSaUsBb">binary-to-text encoding</a> system using <a href="/facts/Graphic_character/aCFyKyDT">printable ASCII characters</a> (<a href="/facts/Alphanumeric/ytA9RSIv">alphanumeric</a> and the <a href="/facts/Equals_sign/AweYSg9h">equals sign</a> =) to transmit <a href="/facts/Octet_(computing)/dqCHsuUF">8-bit</a> data over a 7-bit data path or, generally, over a medium which is not <a href="/facts/8-bit_clean/2j1DTzgg">8-bit clean</a>. Historically, because of the wide range of systems and protocols that could be used to transfer messages, e-mail was often assumed to be non-8-bit-clean – however, modern <a href="/facts/Simple_Mail_Transfer_Protocol/TeCRKDpJ">SMTP</a> servers are in most cases 8-bit clean and support 8BITMIME extension. It can also be used with data that contains non-permitted <a href="/facts/Octet_(computing)/dqCHsuUF">octets</a> or line lengths exceeding SMTP limits. It is defined as a MIME <a href="/facts/MIME/P8PDYuts">content transfer encoding</a> for use in <a href="/facts/E-mail/6pD9GLtI">e-mail</a>.
QP works by using the equals sign = as an <a href="/facts/Escape_character/pTSAozpa">escape character</a>. It also limits line length to 76, as some software has limits on line length.

Quoted-printable open-in-new

Quoted-printable