Mail Servers (OT)

[Ken A]

On 5/12/2010 1:14 PM, Ghetti, Ron wrote:
>
> thanks for the reply Ken,
> yep, I've been through that section a couple of times, believe me.
> it looks like the firewall is doing the connection dropping, only on emails with attachments
> from comcast servers and randomly at that, many of them get through fine.
> we are running a sonicwall 4100 with built-in virus/malware scanning.
> our system is processing about 5k messages per day and it's all running
> pretty smoothly with this one exception that has shown up in the past couple weeks.
>

We use sonicwalls here and there too, though not on outgoing mail.
I would build a path around the sonicwall to be sure that was the 
culprit. IIRC, there are checkboxes for various types of attacks that 
the sonicwall will zap. Once you prove that it's the sonicwall doing it, 
you should be able to get some help from Sonicwall.

Ken

>
> -Ron
>
>
>
>
> ________________________________
>
> From: mailscanner-bounces at lists.mailscanner.info on behalf of Ken A
> Sent: Wed 5/12/2010 9:12 AM
> To: mailscanner at lists.mailscanner.info
> Subject: Re: Mail Servers (OT)
>
>
>
> define(`NOT_RELATED_TO_MAILSCANNER')
>
> Some troubleshooting is in order.
> http://www.postfix.org/faq.html#timeouts
>
> Ken
>
> On 5/11/2010 4:31 PM, Ghetti, Ron wrote:
>>
>> ok, slightly off topic but our mail server is suffering
>> transferis interuptis only with comcast servers over the past few weeks.
>>
>> running postfix  + mailscanner on ubuntu linux
>>
>> reasonably current on everything, this is something that just started,
>> appears to possibly be my firewall doing the interupting but I'm not convinced.
>> my logs say lost connection after Data.
>>
>> I know this is pretty general but wondering if anyone has run into something similar ?
>>
>>
>> much thanks
>>
>> -Ron
>>
>>
>>
>>
>
> --
> Ken Anderson
> Pacific Internet - http://www.pacific.net<http://www.pacific.net/>
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-- 
Ken Anderson
Pacific Internet - http://www.pacific.net