ISPs blocking SMTP connections from dynamic IP address space
Mykroft Holmes IV
mykroft at explosive.mail.net
Thu Aug 7 10:36:51 PDT 2003
Doug Poland wrote:
> On Thu, Aug 07, 2003 at 12:34:45PM -0400, Lucas Holt wrote:
>>I do understand the counter argument about blocking ips.. but i think
>>thats frustration talking. Even if ip blocking is an improvement, it
>>won't stop spam.
> Agreed, does anyone know why requiring reverse DNS isn't "good enough"?
> I've asked both AOL and Time Warner but have received no response.
These Residential/Dynamic blocks are usually reversed. And they cause
the vast majority of problems that originate in North America. Frankly,
alot of people simply blacklist 24.* for this reason.
If your provider's mail servers suck, and they have blocks tagged as
Dynamic, and you have no other options, it's time to make a deal with
someone to relay your mail for you.
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