Francois Martin:
> Hello,
>
>
>
> I have a VM on a CentOS 7 OpenVZ and i have install Kolab.
> I just follow the procedure to make the Kolab multi-domain server with the
> following pages:
> https://docs.kolab.org/howtos/multi-domain.html#amavisd-changes
> http://kolab.org/blog/cornelius-hald/2015/01/05/kolab-3.3-multi-domain-setup-centos-7
>
> I can connect with users in new domains and send mail locally.
>
> When I try to send mail (with roundcube) to the outside, the following error
> message appears in the webmail:
> SMTP Error (451): failed when adding the recipient "ad...@mail.zimbra.com"
> (4.3.0 <ad...@mail.zimbra.com>: Temporary lookup failure)
>
>
> What should I do to correct this?
Look In The LOG.
Wietse
