Re: [exim] Receiving mail from outblaze and others times out…

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Autor: Andrew Nimmo
Data:  
Para: Exim users list
Assunto: Re: [exim] Receiving mail from outblaze and others times out after initial 220

On 16 Apr 2005, at 17:03, Marc Haber wrote:

> On Sat, 16 Apr 2005 16:25:36 +0200, Andrew Nimmo
> <andrew.nimmo+exim.org@???> wrote:
>> connecting to mxfailover.krwdigital.com (mx1) from an adsl host (nat,
>> no firewall), returns a 220 with no delay
>>
>> connecting to mxfailover.krwdigital.com (mx1) from an adsl host (nat,
>> cisco adsl router firewall, most ports blocked), returns a 220 with
>> 30s
>> delay
>
> So you're blocking RFC1413 ident requests. Be nice to your neighbors
> and cleanly reject them, or return a TCP RST.
>


not an uncommon firewall configuration, i suspect. nevertheless, see
below.

> Hm. Are you suggesting that the outblaze servers behave strange
> because of the 30 seconds delay imposed by them dropping the ident
> request?
>


no. the connection tests were done to see how the krw servers responded
to several different connections i have access to, and if the issue
being reported could be detected.

>> connecting to mail.krwdigital.com (mx2) from an adsl host (nat, no
>> firewall), returns a 220 with no delay
>>
>> connecting to mail.krwdigital.com (mx2) from an adsl host (nat, cisco
>> adsl router firewall, most ports blocked) gives no 220
>
> Not at all? Not even after 30 Minutes?
>


no (ok, 20 minutes or so...). note however, i continued testing and
modified the firewall to not deny on 113 (because that was an obvious
difference). a subsequent connect to mail.krwdigital.com responded with
a 220 almost immediately, as expected. initial findings would suggest
an ident-related issue, so i would consider the poster's exim config
ident settings, first. i've not checked, but were there any related
issues with 4.44?

hope this info is of some help.

best regards
andrew


>> would it be possible to check the exim configs for both servers?
>
> I will try to ask the original poster for both of the servers.
>
> Greetings
> Marc
>
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