[BlueOnyx:19505] Re: SMTP connection problem

[Lewis Gardner]

Never mind...

Turned out to be a rule in the 7x.1x2.59.64/28 router blocking port 25 
except to the old subnet. It was there because of spam bots on 
non-compliant user's computers.

Sorry to clutter the list and even think it could possibly be a BlueOnyx 
issue!


Lewis Gardner wrote:
> 
> A bit more info and question.
> 
> Running "tcpdump -i eth0 port 25" shows connections from outside the 
> 7x.1x2.59.64/28 network but shows no activity when a connection is 
> attempted from 7x.1x2.59.66.
> 
> I'm assuming the output of tcpdump gives connection information prior to 
> any firewall, filtering or other configuration in the BlueOnyx 5208R. 
> Correct?
> 
> 
> Lewis Gardner wrote:
>>
>> Greetings!
>>
>> We moved a BlueOnyx 5208R from one IP address to another and now it 
>> appears that SMTP will not accept a connection from the primary email 
>> users. The difference is that the primary senders are now on the same 
>> subnet. Previously they were on different subnets.
>>
>> Previously 7x.1x3.6.128/28
>> Now        7x.1x2.59.64/28
>>
>> The primary email users are on 7x.1x2.59.66 and the BlueOnyx 5208R is 
>> on 7x.1x2.59.69. Sending mail works perfectly from anywhere except the 
>> network the primary email users are on.
>>
>> Am I crazy? Trying to telnet in on port 25 from 7x.142.59.66 gives 
>> either a connection refused or times out. Works fine from anyplace else.
>>
>> Any help would be greatly appreciated!
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>>
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