sendmail: warning: inet_protocols: disabling IPv6 name/address support: Address family not supported by protocol
postdrop: warning: inet_protocols: disabling IPv6 name/address support: Address family not supported by protocol

sendmail: warning: inet_protocols: disabling IPv6 name/address support: Address family not supported by protocol
postdrop: warning: inet_protocols: disabling IPv6 name/address support: Address family not supported by protocol

sendmail: warning: inet_protocols: disabling IPv6 name/address support: Address family not supported by protocol
postdrop: warning: inet_protocols: disabling IPv6 name/address support: Address family not supported by protocol

sendmail: warning: inet_protocols: disabling IPv6 name/address support: Address family not supported by protocol
postdrop: warning: inet_protocols: disabling IPv6 name/address support: Address family not supported by protocol