PCMAIL: A distributed mail system for personal computers

Simple Mail Transfer Protocol

“…The problems associated with ill-formed messages were exacerbated by the introduction of the split-UA mail reading protocols (Post Office Protocol (POP) version 2 [15], Post Office Protocol (POP) version 3 [16], IMAP version 2 [41], and PCMAIL [42]). These protocols encouraged the use of SMTP as a posting (message submission) protocol, and SMTP servers as relay systems for these client hosts (which are often only intermittently connected to the Internet).…”

Annuitizing the human capital investment costs of health service professionals

“…While it would be preferable to include an allowance for emigration, we have to be very cautious in the use of such data. In the first 5 years after qualification the proportion of doctors who are not working in UK medicine is higher in the census (at about 20%) than in the cohort studies (at about 14%) [24]. The rate of participation is higher in the LFS but the numbers are very small in each age group.…”

Simple Mail Transfer Protocol

“…The problems associated with ill-formed messages were exacerbated by the introduction of the split-UA mail reading protocols [3,26,5,21]. These protocols have encouraged the use of SMTP as a posting protocol, and SMTP servers as relay systems for these client hosts (which are often only intermittently connected to the Internet).…”