[CentOS] Sendmail and pmtu discovery

Kai Schaetzl a écrit :
> Ralph Angenendt wrote on Tue, 14 Oct 2008 17:24:08 +0200:
> 
>> If you don't know the smallest MTU on the path to the mail server, you
>> might not be able to send packets over that path, especially if DF is
>> set.
> 
> But if it's not set? Shouldn't most devices have it not set?
> 

It's not per device. It's a method to improve performances.
	http://www.znep.com/~marcs/mtu/