[BlueOnyx:22561] Re: Vacation Message not working.

[Mon Chan]

Is my ssl cert issue ? Can we re/gen the ssl cert to fix this issue? Or
disable TOS for 127.0.0.1?

Now we using openwebmail, i don’t know can install openwebmail again if we
install new 64bit Blueonyx server.(we try it before , the openwebmail not
working after os yum update



「Michael Stauber <mstauber at blueonyx.it>」在 2018年12月17日 週一，下午2:39 寫道：

> Hi Mon Chan,
>
> > The customer enable the vaction message but not working.
> > We check the log, the error show Deferred: 403 4.7.0 TLS handshake. and
> > stop to send the reply email.
>
> The problem seems to be this here:
>
> > Dec 17 13:18:11 mail sendmail[15411]: STARTTLS=server, error: accept
> > failed=0, SSL_error=1, errno=0, retry=-1, relay=localhost [127.0.0.1]
> > Dec 17 13:18:11 mail sendmail[15410]: STARTTLS=client:
> > 15410:error:14082174:SSL routines:SSL3_CHECK_CERT_AND_ALGORITHM:dh key
> > too small:s3_clnt.c:3345:
> > Dec 17 13:18:11 mail sendmail[15410]: ruleset=tls_server, arg1=SOFTWARE,
> > relay=[127.0.0.1], reject=403 4.7.0 TLS handshake.
>
> The exact error message being:
>
> ------------------------------------------------------------
> SSL routines:SSL3_CHECK_CERT_AND_ALGORITHM:dh key too small:s3_clnt.c:3345
> ------------------------------------------------------------
>
> This means the host (mail.gsnt.net) is using Diffie-Hellman keys for his
> TLS connection that are too small, so the chiffre and protocol
> negotiation does not conclude. The problem is on mail.gsnt.net's end.
> It's a 5107R and from the looks of it it's missing a few years worth of
> updates. At the least it could be upgraded to 5207R via this guide:
> https://www.blueonyx.it/index.php?page=upgrade
>
>
> --
> With best regards
>
> Michael Stauber
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>
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