[Setup] Unable to send test e-mail

James Hanson jahanso at gmail.com
Fri Jun 19 11:34:22 UTC 2015


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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