| Subject | English | Spanish |
| IT, industr. | Post Office Protocol | protocolo de oficina de correo |
| IT | post office protocol | protocolo de oficina de correos |
| commun. | post office protocol | protocolo de oficina postal |
| commun. | post office protocol | protocolo de la oficina de correos |
| inet. | Post Office Protocol | Protocolo de Oficina de Correos |
| comp., MS | Post Office Protocol version 3 | Protocolo de oficina de correos v.3 (An Internet standard protocol that allows a user to download e-mail from his or her inbox on a server to the client computer where messages are managed. This protocol works well for computers that are unable to maintain a continuous connection to a server) |