Ted Mittelstaedt wrote: > 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.
On the other hand, I set up a mail server on my Bellsouth DSL connection a couple of years ago. I tried to send mail direct, but I had too many problems with servers rejecting the mail, so I was forced to relay through Bellsouth's servers. I guess it depends on whether you are lucky enough to get an IP from a block that's not on the blacklists. -- Bowie
