| Subject | English | Catalan |
| comp., MS | envelope journaling | registre de sobres al diari (A type of message journaling in which the original unaltered message is included as an attachment in the journal report) |
| math. | envelope power function | funció de potència envolupant |
| math. | envelope risk function | funció de risc envolupant |
| comp., MS | message envelope | sobre d'un missatge (" The information contained in an e-mail message that is required to send and deliver a message between messaging servers by using SMTP protocol commands. The message envelope contains the sender e-mail address and the recipient e-mail address information. Recipients never see the message envelope, because it is not part of the message content, and it is discarded when the message reaches its destination. The X.400 messaging standard equivalent to the message envelope is called the "P1 header." The message envelope is often referred to as the "P1 header.") |
| comp., MS | message transfer envelope | sobre de transferència de missatges (A MAPI message that holds the delivery information for a message) |