Re: Mail security problems
From: TheMartian (themartian@phreaker.net)Date: 09/13/02
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From: TheMartian <themartian@phreaker.net> Date: Fri, 13 Sep 2002 13:03:14 GMT
After a long battle with technology, "Tim Haynes" an earthling wrote:
> TheMartian <themartian@phreaker.net> writes:
>
> [snip]
>>>> Delayed messages, think 11 days as the record. Every delayed message
>>>> fails digital sig verification.
>>>>
>>>> Ok am I being extra paranoid, or is someone/something intercepting
>>>> some of my mail?
>>>
>>> Do you stipulate a smarthost for outgoing mail? Who do you use for
>>> DNS?
>>
>> No smarthost.
>
> Good, I hate the beggars too. Next question: does your ISP transparently
> intercept 25/tcp outgoing (e.g. like Freeserve does in the UK - you
> telnet 25 on a box and you'll always get one of their banner strings
> back, oops).
freeserve are a dirty work around me at the moment, one of there
customers spammed me. I LARTed them, and am waiting for the reply if
any...
My main ISP may do something like that, but I am not aware of it, and they
would never admit it if they did.
just tried the telnet to port 25, and no sign of any banners, but to be
sure I just posted on the security NG, another victim may know.
With this ISP, the outgoing mail server has been totally fscked for
several years, and only worked for a short time when I signed up several
years back. They tell me that if I was runing windoze it would work.
>> The DNS is my ISPs.
>
> That is where I'd start to worry. Got a freebie backup ISP that you
> could test things with?
>
> ~Tim
I have tried another ISP with there DNS etc, with no difference.
The real odd thing about this mail problem is that I have only noticed it
with mail to europe and the US, never with anything local, so do not think
its the ISP doing it.
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