New problem with firewall

[Alma J Wetzker]

Marcio A. Regalado wrote:
> Net Llama! wrote:
> 
>> On Thu, 8 Dec 2005, Marcio A. Regalado wrote:
>>
>>> Hi guys, I'm again asking for your help...
>>>
>>> I've a FC4 linux box running behind a firewall... the thing is that the
>>> FC4 box has an e-mail server and an apache server running on it and I
>>> need them to be accesible on-line I've a Dynamic IP so I get all the
>>> trafic redirected by no-ip, and the apache server runs fine, the web
>>> page is ok on-line but I can't receive e-mail from internet can you guys
>>> please help me with this issue
>>
>>
>>
>> What does "can't receive e-mail from internet" mean exactly?  Is the 
>> email
>> bouncing?  If so, what's the bounce look like?
>>
>> Which MTA are you using?  What's the domain for the email that you're
>> using?
>>
> it means no e-mail arrives no bounce, no queued, no message at all I'm 
> using the software and configuration from de qmailrocks page (qmail :P)

Could you be blocked by your ISP?  I know Comcast will not let me run a 
mail server.  They already have huge problems with spam, that could just 
overwhelm the internet if it were allowed.  (Think a windows spambot 
that could work without going through the ISP mail servers, <shudder>.)

Are any of the other ISP's more liberal about server policies than Comcast?

     -- Alma