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Groups > linux.debian.user > #179659 > unrolled thread

debugging TLS alert

Started byJoe Pfeiffer <pfeiffer@cs.nmsu.edu>
First post2017-03-31 20:20 +0200
Last post2017-03-31 22:00 +0200
Articles 2 — 2 participants

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  debugging TLS alert Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2017-03-31 20:20 +0200
    Re: debugging TLS alert Brian <ad44@cityscape.co.uk> - 2017-03-31 22:00 +0200

#179659 — debugging TLS alert

FromJoe Pfeiffer <pfeiffer@cs.nmsu.edu>
Date2017-03-31 20:20 +0200
Subjectdebugging TLS alert
Message-ID<tr9jr-8aa-5@gated-at.bofh.it>
I'm trying to use exim4 to send email to another site.  My host
connects, negotiates a TLS connection and sends what seems to be a
reasonable amount of application data.

I then get an encrypted alert from the other host, the connection shuts
down, and the email doesn't get delivered.  I don't get any errors in my
exim4 log.

To the best of my knowledge, the other site is the only one I try to
send email to that is having the problem, and mine is the only host
having trouble sending to that site.

So...  any words of wisdom on how to debug this?  I've trying turning
all logging on in exim4, and didn't get anything helpful.  Is there a
way to turn logging on in gnutls?

Thanks,

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#179662

FromBrian <ad44@cityscape.co.uk>
Date2017-03-31 22:00 +0200
Message-ID<traSd-ya-7@gated-at.bofh.it>
In reply to#179659
On Fri 31 Mar 2017 at 11:53:27 -0600, Joe Pfeiffer wrote:

> I'm trying to use exim4 to send email to another site.  My host

Which site?

> connects, negotiates a TLS connection and sends what seems to be a
> reasonable amount of application data.

Exim sends something? What is "application data"?

> I then get an encrypted alert from the other host, the connection shuts
> down, and the email doesn't get delivered.  I don't get any errors in my
> exim4 log.

Does the log say the mail is delivered. An excerpt please.

> To the best of my knowledge, the other site is the only one I try to
> send email to that is having the problem, and mine is the only host
> having trouble sending to that site.

If you are the only host with the problem you are the one creating the
problem.

> So...  any words of wisdom on how to debug this?  I've trying turning
> all logging on in exim4, and didn't get anything helpful.  Is there a
> way to turn logging on in gnutls?

One word: swaks.

-- 
Brian.

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