Les notifications par e-mail échouent après la mise à jour

Soutien Installation
1

Récemment mis à jour vers la dernière version et soudainement les notifications par e-mail ne fonctionnent plus.

Sidekiq affiche l’erreur suivante :

obs::HandledExceptionWrapper: Wrapped OpenSSL::SSL::SSLError: SSL_connect returned=1 errno=0 state=error: dh key too small

mais je ne parviens pas à trouver beaucoup d’informations utiles à ce sujet.

Mes configurations sont simplement les suivantes :

DISCOURSE_SMTP_ADDRESS: <smtp.domain.com>
DISCOURSE_SMTP_PORT: 587
DISCOURSE_SMTP_USER_NAME: <account@domain.com> 
DISCOURSE_SMTP_PASSWORD: '<password>'
DISCOURSE_SMTP_ENABLE_START_TLS: true           # (optionnel, valeur par défaut true)

(Les URL ont été masquées pour des raisons de confidentialité, mais tout est standard.)

2

There is a problem with your https certificates.

3

I guess my questions are…

A) Why is this problem something that didn’t exist before but does now, and how do i find out what that problem is. and

b) Why does that problem only affect smtp and not the site as a whole? My SSL certificates are valid until april 2020, and https is working fine on the site as a whole…

Is there any method to troubleshoot why discourse suddenly doesn’t like my ssl certificates for smtp?

4

The problem is this:

The SMTP you are using provides a DH key that is too small. Are you using your own SMTP server? If so, you are in good company. Rackspace had the same problem up until recently.

Email SSL Errors after Update to 2.4.0.beta4 - #11 by gerhard contains instructions on how to debug the issue and a temporary workaround. But you or your provider should really increase the size of the DH key.