[Setup] Unable to send test e-mail

James Hanson jahanso at gmail.com
Fri Jun 19 12:03:31 UTC 2015


Opps. I meant to say the "no_tls" variable.

On Fri, Jun 19, 2015 at 6:34 AM, James Hanson <jahanso at gmail.com> wrote:

> Thanks for the information. I was able to get it running by changing the
> zope.sendmail-3.7.5-py2.7.egg, more specifically changing the "no_ssl"
> variable to True in mailer.py. I wonder if this "no_ssl" variable can be
> set somewhere in the administration/setup area?
>
> Thanks again, Mikko.
> James.
>
> On Thu, Jun 18, 2015 at 6:41 PM, Mikko Ohtamaa <
> mikko+plone at redinnovation.com> wrote:
>
>>
>>
>> On 18 June 2015 at 08:45, James Hanson <jahanso at gmail.com> wrote:
>>
>>> We are getting the following message when setting up the Mail settings
>>> and doing the "save and send test email".
>>> Error Unable to send test e-mail [Errno 1] _ssl.c:504:
>>> error:1411809D:SSL routines:SSL_CHECK_SERVERHELLO_TLSEXT:tls invalid.
>>>
>>> Sending through our SMTP server works from the command line.
>>>
>>> Traceback at: http://pastie.org/10247132
>>> Plone version 4.2.1 on linux 2.6.33.7-server-2mnb
>>>
>>> Not finding much help from searching.
>>>
>>
>> It is related to Python 2.7, it's SSL built and what default SSL/TLS
>> Python uses when it negotiates the secret connection. Knowing what kind of
>> encryption the mail server uses might give a hint.
>>
>> Here is a mixed bag of related errors:
>>
>>
>> http://stackoverflow.com/questions/10678695/in-python-3-2-i-can-open-and-read-an-https-web-page-with-http-client-but-urlli
>>
>> Potential causes I come up in my mind are
>>
>> - Python tries SSLv2 when SSLv3 required
>>
>> - The server requires Server Name Identification (SNI) support which
>> Python version running Plone supports
>>
>> Unfortunately I am not sure how to fix, but with more information I am
>> sure this is solvable.
>>
>> As a work around what you can always do: Setting up a mail server on the
>> server (localhost) which works as a slave for the actual external mail
>> server. Here is an example for Ubuntu Linux and Postfix:
>>
>>
>> http://opensourcehacker.com/2013/03/26/using-postfix-and-free-mandrill-email-service-for-smtp-on-ubuntu-linux-server/
>>
>> Thanks,
>> Mikko
>>
>>
>>
>>> James.
>>>
>>> _______________________________________________
>>> Setup mailing list
>>> Setup at lists.plone.org
>>> https://lists.plone.org/mailman/listinfo/plone-setup
>>>
>>>
>>
>>
>> --
>> Mikko Ohtamaa
>> http://opensourcehacker.com
>> http://twitter.com/moo9000
>>
>
>
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