Gmail was Re: [ILUG] Best Email Server to Use

[Michele Neylon :: Blacknight]

On 1 Aug 2008, at 13:05, Kae Verens wrote:

> Michele Neylon :: Blacknight wrote:
>>
>> If you revealed the user's source IP in the headers we could block
>> THEM not Google
>>
> if you did that, then soon enough, it would be impossible for anyone
> with a DHCP'd IP address (everyone in Eircom, Digiweb, Perlico, etc)  
> to
> send email, as it's virtually certain that someone in each DHCP pool  
> has
> a compromised computer, and sooner or later, that IP will shift off to
> some other innocent person who will then be unable to send email  
> because
> they will be branded a spammer.

Sorry Kae but that doesn't actually happen in reality.

In reality we use Spamhaus to block people from accessing our SMTP. If  
they are on a blacklisted IP they have two options:
1 - reboot their router to see if they get a new ip
2 - use their ISP's SMTP

What you are possibly confusing is the PBL which a lot of ISPs are  
applying which impacts on people setting up mail servers on dynamic  
ranges



Mr Michele Neylon
Blacknight Solutions
Hosting & Colocation, Brand Protection
http://www.blacknight.com/
http://blog.blacknight.com/
Intl. +353 (0) 59  9183072
US: 213-233-1612
UK: 0844 484 9361
Locall: 1850 929 929
Direct Dial: +353 (0)59 9183090
Fax. +353 (0) 1 4811 763
-------------------------------
Blacknight Internet Solutions Ltd, Unit 12A,Barrowside Business  
Park,Sleaty
Road,Graiguecullen,Carlow,Ireland  Company No.: 370845