On Friday, March 23, 2018 03:13:54 PM Brian wrote: > On Fri 23 Mar 2018 at 12:01:42 -0500, David Wright wrote: > > I venture to suggest that many (most?) .home users will be using their > > ISP's smarthost, which would mean that the ISP (a) usually insist on > > authentication and (b) and likely to have issued the network name > > (like ip70-179-161-106.fv.ks.cox.net) themselves. > > "most" is a very reasonable estimate. "insist" is less reasonable > because the user will already have had to be authenticated to be on > the network. There would be little point in cox.net asking for more > credentials to send mail. Once you are on my network, mail is just > a service offered to a user.
Just as a data point, the ISPs I have used over the years have all required that my email client (talking to their smarthost, if I understand the terminology being used here correctly) authenticate each time it connects to receive or send email. (The credentials (typically a password) are stored in what I refer to as a "Windows style" email client (kmail is what I'm using now, getting mail via pop3 and sending via smtp). The ISPs (that I can remember off the top of my head) have included Fastnet, RCN, and Earthlink.
