Guido Van De Velde wrote:
>
> My postfix servers relay all their mail to "next hops" further in our
> network. I notice that two of those next hops _always_ induce 30" delay
> (postfix smtp client goes to sleep for 30") while sending from my
> postfix's to those machines. Mail to other machines is handed through
> normaly with about 0" delay. I'm talking about all internal machines,
> there is no network delay.

Google for "mail delay ident" to find some pointers on what may be
happening. If this is indeed the case, you will see the same kind
of delay when you telnet to port 25 of those servers by hand. To
fix, adjust your firewall settings. Don't forget stuff like ipchains.

cheers,
Alex
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