[Sqlgrey-users] IPv6 issue

Can anyone help me with this issue?

I recently upgraded my Fedora distro server to 27 and rebuilt my mail 
server. But when I try to start sqlgrey I get the following:


Mar 17 17:05:29 www.xxxxxxxxx.xxx systemd[1]: Started SQLgrey Postfix 
Grey-listing Policy service.
Mar 17 17:05:29 www.xxxxxxxxx.xxx sqlgrey[30294]: Resolved 
[localhost]:2501 to [127.0.0.1]:2501, IPv4
Mar 17 17:05:29 www.xxxxxxxxx.xxx sqlgrey[30294]: Resolved 
[localhost]:2501 to [::1]:2501, IPv6
Mar 17 17:05:29 www.xxxxxxxxx.xxx sqlgrey[30294]: Binding to TCP port 
2501 on host 127.0.0.1 with IPv4
Mar 17 17:05:29 www.xxxxxxxxx.xxx sqlgrey[30294]: Binding to TCP port 
2501 on host ::1 with IPv6
Mar 17 17:05:29 www.xxxxxxxxx.xxx sqlgrey[30294]: 2018/03/17-17:05:29 
Can't connect to TCP port 2501 on ::1 [Address family not supported by 
protocol]
                                                          at line 64 in 
file /usr/local/share/perl5/Net/Server/Proto/TCP.pm
Mar 17 17:05:29 www.xxxxxxxxx.xxx sqlgrey[30294]: 2018/03/17-17:05:29 
Server closing!
Mar 17 17:05:29 www.xxxxxxxxx.xxx systemd[1]: sqlgrey.service: Main 
process exited, code=exited, status=1/FAILURE
Mar 17 17:05:29 www.xxxxxxxxx.xxx systemd[1]: sqlgrey.service: Unit 
entered failed state.
Mar 17 17:05:29 www.xxxxxxxxx.xxx systemd[1]: sqlgrey.service: Failed 
with result 'exit-code'.

I have IPv6 disabled on this server. Is there an option I can use to 
cause sqlgrey to not bind to an IPv6 address?


Will