[BlueOnyx:26272] Re: Postfix remote SMTP fixed, incoming not working though

[Michael Stauber]

Hi Arie,

> Welllll........
> 
> seems all is working except the blueonyx mails not coming through.....
> 
> Jun  1 18:34:25 x10-server postfix/smtpd[217413]: connect from 
> lists.blueonyx.it[208.77.151.199]
> Jun  1 18:34:25 x10-server postfix/smtpd[217413]: SSL_accept error from 
> lists.blueonyx.it[208.77.151.199]: -1
> Jun  1 18:34:25 x10-server postfix/smtpd[217413]: warning: TLS library 
> problem: error:1417A0C1:SSL routines:tls_post_process_client_hello:no 
> shared cipher:ssl/statem/statem_srvr.c:2285:


That happens when your BlueOnyx relays through your IPS's MTA in order 
to send email to the BlueOnyx list server?

The error message indicates that your end couldn't find a common ground 
when negotiating with the BlueOnyx server about which SSL protocol and 
ciphers to use.

The listserver is a 5209R running Sendmail and I'm about to upgrade it 
to a 5210R using Postfix this weekend. Still: The ciphers and protocols 
it uses are standard and it has common grounds in that regards with 
pretty much anything. The only thing it can't do is TLSv1.3.

I'm wondering if your ISP is using an even older antiquity MTA which 
can't handle modern or semi-modern TLS ciphers.

-- 
With best regards

Michael Stauber