Eudora, Dovecot, 20.04 LTS

[Chris Green]

On Wed, Jan 06, 2021 at 08:51:14AM -0800, david wrote:
> At 08:40 AM 1/6/2021, David Fletcher wrote:
> > On Wed, 2021-01-06 at 08:17 -0800, david wrote:
> > > Folks
> > >
> > > I have installed Ubuntu 20.04.1 LTS with Postfix and Dovecot to
> > > replace a server that was running Centos.  I also use Eudora 7 on my
> > > Windows desktop as a mail client (yes, I know it's old, but it's
> > > still the best).  Eudora works in centos 7 and 8, but does not work
> > > in Unbutu (using TLS, Alternate Port).  The server log complains:
> > 
> > Evolution on my Mint 20 desktop says it's talking to my Dovecot on my
> > Ubuntu 20.04 server using IMAP / TLS on a dedicated port (993)
> 
> Yes, I know that the Ubuntu dovecot works because I ran a different mail
> client as a test and it worked perfectly.  I strongly suspect that Eudora is
> using some 'older' protocol which Dovecot on Centos allows but Dovecot on
> Ubuntu does not.  The version numbers of Dovecot are similar:
> 
> Ubuntu 20.04.1:  Dovecot 2.3.6.2
> Centos8: Dovecot 2.3.8
> Ubuntu 20.10: Dovecot 2.3.11
> 
Firefox has just started complaining about sites which are using TLS
1.0 or TLS 1.1 saying that the next version won't support these.  Are
you maybe getting caught by the same issue?

-- 
Chris Green