>Hmm, more info.  I think the connections that have TTL 0 are IPv6.
>`ifconfig` shows :
>ppp0: flags=8151<UP,POINTOPOINT,RUNNING,PROMISC,MULTICAST> mtu 1524
>        inet 212.228.127.249 -> 158.152.1.222 netmask 0xffffff00
>        inet6 fe80::a00:20ff:fe09:6caf%ppp0 -> :: prefixlen 64 scopeid 0x3

	please provide the folloing information.
	- what do you mean by "TTL 0"?
	- can you tell us which domain is the destination? (so that we can see
	  the MX records for the destionation).
	- show us the result of "netstat -an" during the delayed connection.
	  (otherwise, you are not sure if the first trial is to IPv6
	  destination or not)

	if you do not have IPv6 default route, even if sendmail attempts to
	connect to IPv6 destination, it will fail right away and there should
	be no problem.

itojun