On Tuesday 24 January 2017 19:00:51 Sl�vek Banko wrote: > Dne �t 24. ledna 2017 Leslie Turriff napsal(a): > > Since migrating from my dying laptop to my new desktop machine, > > kmail refuses to send mail to my mail provider's servers, forcing > > me to use their webmail interface (yuk). I have tinkered with > > the kmail configuration to no avail, and I've even tried copying > > the old kmailrc file over the new; but nothing works. Currently, > > when I attempt to upload mail, I see this message in the status > > area: > > > > "Unrecognized transport protocol. Unable to send message." > > > > During my struggles, I also saw, in a separate window, the > > attached security failure message. I have also attached snapshots > > of my SMTP configuration, and this link points to setup > > instructions for my mail provider's SMTP server: > > > > http://email.about.com/od/Accessing-Mail-com/f/Mail-com-SMTP-Serv > >er-Set tings.htm > > > > Neither of these messages gives me enough detail about the > > problem to know how to proceed. I suspect something is corrupted > > in the kmail config, but deleting and replacing the Sending entry > > hasn't helped, nor has replacing the entire file with the working > > one from the old machine. mail.com has suggested that I change > > from using pop3 to imap (like that would help), and > > > > > Please be advised to correct your server setting by using the > > > information below: > > > > > > For IMAP Server: > > > > > > Incoming: > > > [snip] > > > Outgoing: > > > Server: smtp.mail.com > > > Port: 587 > > > Encryption: STARTTLS > > > > > > If "STARTTLS" is not available, please use the protocol "TLS". > > > If this option is also not available simply activate > > > "Encryption". > > > > which has not helped. Using kmail's "Check what the server > > supports" sets TLS and PLAIN. I'm guessing that TLS = STARTTLS, > > and SSH = Encryption. The config on my old system has SSH and > > PLAIN set. Neither of these works on my new system. Any > > suggestions are welcome. > > > > Leslie > > The correct combinations should be: > > port 25 + TLS > port 465 + SSL > port 587 + TLS > > Cheers Might also need to set authentication to "Login" -- Best Regards: Baron