LuKreme wrote:
On 20-Oct-2009, at 17:03, Evan Platt wrote:
At 03:58 PM 10/20/2009, you wrote:
Domains cost about $10 a year. Static IP addresses depend on your ISP.
Some are cheap, some are not, and some won't do it at all. However,
you do not have to have a static IP. You can use a service like
DynDNS.org , which I think is about $20/year (they have free hosting,
but for a
mailserver you're not going to be able to use just the free dynamic
DNS service).
Why wouldn't the free DYNDNS work for a mailserver?
Because many mail servers will not talk to you directly on a dynamic IP
and will not accept outbound mail from you on a dynamic IP.
While I'm no fan of the dydns.org dynamic-is-static thing, I will cry
foul on this.
We had a customer one time who for nonsensical political and stupid
reasons wasn't using us as the circuit provider, and was instead using
a dynamically-numbered DSL line from qwest.net. (they used us for
webhosting only) They had an exchange
server on this line, and they were too
cheap even to use dydns.org so what they did is they ran an "at" job on
their exchange server that pinged the qwest nameservers once a
minute (to keep the ppp-mode DSL line up) and they would see what IP
address qwest assigned then enter this into their DNS zone file on
whatever registrar they used.
Their IP only changed about once a month or so, whereupon inbound mail
would drop off (that's how they knew it changed) they would log back
into their registrar, change the IP address, and off they went again.
They never had problems sending or receiving mail doing this and
I know they weren't relaying through qwest's mailservers. I always
dreaded calls from them, as they were the type who cost more in
support time than they were worth, fortunately they went away eventually.
It's not something I'd do on my own equipment, but I take issue with
the claim that it doesn't work - I've seen it work.
Ted
