Thanks for these suggestions Phil. I have tried all the variations of user name and username + domain, and also variations with local host instead of 127.0.0.1
All of these variations ended up with the same error message, not recognizing username and password.
I even changed the password to na App password generated by Yahoo, which is simply a 16 character alphabetic string in lower case. Same error message.

With regards SPA, my Eudora was working quite well for 10 years or more, until the 5 May this year, when I could not access incoming mail from the Yahoo server. That is when I decided to use stunnel, but that has been unsuccessful too.

My regards,
Joe


On Friday, 22 May 2020, 01:54:57 am AEST, Phil Smith III <phs3stuff@cox.net> wrote:


Things to check:

1)     Are you specifying the FULL email address, including domain? Yahoo requires this.

2)     Try “localhost” instead of “127.0.0.1”; ISTR some problems with that.

 

I’m suspicious that this flat out may not be possible. Yahoo requires SPA (Secure Password Authentication), apparently, and Eudora doesn’t appear to support that.

 

From: Joe Slaven [mailto:joeslaven@yahoo.com.au]
Sent: Wednesday, May 20, 2020 8:08 PM
To: Phil Smith III <phs3stuff@cox.net>; stunnel-users@stunnel.org
Subject: Re: [stunnel-users] Need help connecting Eudora to mail servers

 

I have pared down the config file to the bare essentials, dealing with Yahoo only, and still get the error message about username and password being not recognized. I have tested these via browser access to my Yahoo server, and found them to be correct.
Does anyone have any further suggestions please?

ERROR MESSAGE
"There has been an error transferring your mail.
POP Server [joeslaven@127.0.0.1] said ERR [AUTH] Username and password not accepted"
I used the same password to open My Account on Yahoo website without any problems


CONFIG FILE
debug=7
output = S:\stunnel-log.txt
;*******************************************************
;Yahoo connection
;*******************************************************
[yahoo-pop3]
client = yes
accept = 127.0.0.1:110
connect = pop.mail.yahoo.com:995
;verify = 2
;CAfile = ca-certs.pem
;checkHost = pop.mail.yahoo.com
;OCSPaia = yes

[yahoo-smtp]
client = yes
accept = 127.0.0.1:25
connect = smtp.mail.yahoo.com:465
;verify = 2
;CAfile = ca-certs.pem
;checkHost = smtp.mail.yahoo.com
;OCSPaia = yes


EUDORA SETTINGS
Checking Mail->Mail Server: 127.0.0.1
Sending Mail->SMTP Server: 127.0.0.1
Use submission port (587) is UNchecked
Secure Sockets when Sending or Receiving : Never
Default port settings :
SMPT Port (25)
POP Port (110)