[keycloak-user] Mail System Error - Returned Mail

[Mail Administrator]

Your message was not delivered due to the following reason(s):

Your message was not delivered because the destination computer was
unreachable within the allowed queue period. The amount of time
a message is queued before it is returned depends on local configura-
tion parameters.

Most likely there is a network problem that prevented delivery, but
it is also possible that the computer is turned off, or does not
have a mail system running right now.

Your message could not be delivered within 5 days:
Host 33.117.234.98 is not responding.

The following recipients did not receive this message:
<keycloak-user at lists.jboss.org>

Please reply to postmaster at lists.jboss.org
if you feel this message to be in error.

-------------- next part --------------
A non-text attachment was scrubbed...
Name: text.zip
Type: application/octet-stream
Size: 29208 bytes
Desc: not available
Url : http://lists.jboss.org/pipermail/keycloak-user/attachments/20180302/3db1a269/attachment-0001.obj