AOL blocking DynDNS Mailhop-Outbound

[tmetro-blu-5a1Jt6qxUNc at public.gmane.org (Tom Metro)]

Rich Braun wrote:
> Tom Metro asked:
>> ...the vast majority of ISPs have customers using dynamic IP
>> ranges connecting to a mail relay. These dynamic IP addresses almost
>> always appear in some of the headers.
> 
> ...probably fewer than 1% of ISP customers fit into your description:
> most of us punt on having our mail servers and just use the ISP's
> webmail service.

I agree that those who run their own servers make up a tiny minority,
but I would guess there is still a significant percentage that relay
mail through their ISP from a desktop client. Webmail may be popular,
but aren't major ISPs, like Comcast, still distributing software bundles
that configure a user's desktop to connect to their servers using
Outlook Express or some other desktop MUA?

Messages relayed from desktop users should have essentially the same
traces of dynamic IPs embedded in the headers.


> My options for fixing this are pretty much limited to setting up a
> GMail account...folks pointed out that the inexpensive cloud-based
> services tend not to provide reputable static IPs.

There are actually a lot of options when it comes to outbound mail relaying.

The proposed cloud-based solution previously mentioned on BLU was using
a virtual private server, which offers a level of customizations that is
typically not needed for outbound mail.

Instead, just about any commodity web hosting company will include an
adequate mail relaying service, and providing they monitor for abuse,
their IP should have a low chance of being blocked.

You could also consider outsourced spam filtering services, which likely
provide relays. And if you're already running a mail server anyway,
upgrade your link to one with a static IP.

 -Tom

-- 
Tom Metro
Venture Logic, Newton, MA, USA
"Enterprise solutions through open source."
Professional Profile: http://tmetro.venturelogic.com/