On 9/25/2012 8:29 AM, Ralf Hildebrandt wrote:
> * Mikael Bak :
>> Hi Stan,
>>
>> On 09/25/2012 08:22 AM, Stan Hoeppner wrote:
>>>
>>> Apparently Linux and Windows TCP window scaling doesn't always work
>>> reliably together. Try disabling TCP window scaling on the Linux box(en):
>>>
>> [snip]
>>
>
sporadic bouts of lost connections to exchange 2010 hub transport
>
> * Mikael Bak :
>> Hi Stan,
>>
>> On 09/25/2012 08:22 AM, Stan Hoeppner wrote:
>>>
>>> Apparently Linux and Windows TCP window scaling doesn't always work
>>> reliably toge
-Original Message-
From: owner-postfix-us...@postfix.org [mailto:owner-postfix-us...@postfix.org]
On Behalf Of Ralf Hildebrandt
Sent: Tuesday, September 25, 2012 9:30 AM
To: postfix-users@postfix.org
Subject: Re: sporadic bouts of lost connections to exchange 2010 hub transport
* Mikael
* Mikael Bak :
> Hi Stan,
>
> On 09/25/2012 08:22 AM, Stan Hoeppner wrote:
> >
> > Apparently Linux and Windows TCP window scaling doesn't always work
> > reliably together. Try disabling TCP window scaling on the Linux box(en):
> >
> [snip]
>
> Perhaps off topic, but do you have any links to
Hi Stan,
On 09/25/2012 08:22 AM, Stan Hoeppner wrote:
>
> Apparently Linux and Windows TCP window scaling doesn't always work
> reliably together. Try disabling TCP window scaling on the Linux box(en):
>
[snip]
Perhaps off topic, but do you have any links to documents or similar
that proves th
On 9/24/2012 3:32 PM, Ralf Hildebrandt wrote:
>
>> I'm running 2.3.3 on CentOS 5 as a mail relay; most of my mail is
>> delivered to an internal Exchange 2010 environment with two Hub
>> Transport machines clustered behind Windows NLB under the same
>> hostname.
>
> We have the same setup, but wi
On 9/24/2012 3:03 PM, Aaron Bennett wrote:
> Hi,
>
>
>
> I’m running 2.3.3 on CentOS 5 as a mail relay; most of my mail is
> delivered to an internal Exchange 2010 environment with two Hub
> Transport machines clustered behind Windows NLB under the same
> hostname.
>
>
>
> I’m seeing spora
> I'm running 2.3.3 on CentOS 5 as a mail relay; most of my mail is
> delivered to an internal Exchange 2010 environment with two Hub
> Transport machines clustered behind Windows NLB under the same
> hostname.
We have the same setup, but with a more recent postfix and OS.
Shouldn't matter that m
* Aaron Bennett :
> Sep 24 11:58:01 megalon.clarku.edu postfix/qmgr[28063]: BA1362E778B:
> to=, relay=none, delay=0.06,
> delays=0.05/0/0/0, dsn=4.4.2, status=deferred (delivery temporarily
> suspended: lost connection with exchange.clarku.edu[140.232.254.129]
> while receiving the initial server
