Thank you very much for your reply. Your answer has helped to solve this problem. Also grateful to you for showing security gaps. I will notify my administrator.
On Mon, 1 Apr 2019 10:18:39 +0200 Ricardo Mones <mo...@debian.org> wrote: > control: tags -1 moreinfo > > Hi Giedrius, > > On Mon, Apr 01, 2019 at 09:48:10AM +0300, Giedrius wrote: > > Package: sylpheed > > Version: 3.7.0-4 > > Severity: normal > > > > After upgrading from strech to buster doesn't send and > > does not receive emails. Written by ERROR: Connection to mail.am.lt:995 > > failed. > > I can't find anything that might be bad in the settings. With Debian strech, > > the same settings work well. > > Terminal writes: > > .comments: unlink: Folders > > > > (sylpheed: 12851): LibSylph-WARNING **: 09: 39: 06.590: SSL_connect () > > failed > > with error 1, ret = -1 (error: 1425F102: SSL routines: > > ssl_choose_client_version: unsupported protocol) > > > > > > (sylpheed: 12851): LibSylph-WARNING **: 09: 39: 06.590: can't initialize > > SSL. > > > > (sylpheed: 12851): LibSylph-WARNING **: 09: 39: 06.590: [09:39:06] Couldn't > > connect. > > > > gmail.com account is working well. > > > > Maybe you can advise what's wrong here. > > The server probably doesn't support TLS v1.2 protocol, which has been > added as minimum requirement in buster. > > You can workaround this by downgrading MinProtocol and/or CipherString > in the system_default_sect section of your /etc/ssl/openssl.cnf file, > and see if it works, but: > > ! Notice that such changes will make *all* your SSL connections less > ! secure. Upgrading the server to support TLS v1.2 is the right fix. > > regards, > -- > Ricardo Mones > ~ > Quantity derives from measurement, figures from quantities, > comparisons from figures, and victories from comparisons. > Sun Tzu -- Giedrius Vaivilavičius <gvaivilavic...@gmail.com>
