Re: Postfix can't send external email

[Benny Pedersen]

On 2016-07-19 23:45, markus79 wrote:
root@wcp-2:/etc/postfix# ping6 -c 3 ipv6.google.com
connect: Network is unreachable

then its not a postfix problem, but badly firewall, eq slack autoconfig 
?

sorry cant help more