Date: Fri, 5 Oct 2001 03:26:46 -0600 (CST) From: Ryan Thompson <ryan@sasknow.com> To: Duke Normandin <dnormandin@myrealbox.com> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: "No route to host" error Message-ID: <Pine.BSF.4.21.0110050314240.75221-100000@ren.sasknow.com> In-Reply-To: <1002249734.4fc3aff5dnormandin@myrealbox.com>
next in thread | previous in thread | raw e-mail | index | archive | help
Duke Normandin wrote to freebsd-questions@FreeBSD.ORG: > Hi... > > Pleasee CC me as I'm not subscribed! > > My new ISP does not allow direct connections to other SMTP servers -- > i.e., I *have* to use them as a 'Smarthost' (I think). Right. Assuming this is more than a TOS policy, they will have a firewall rule upstream from you prohibiting outgoing connections from you to port 25 on hosts beyond their SMTP servers. What they may not care about (and thus not firewall) is INBOUND connections from anyone to you on port 25. If this is the case, there should be nothing stopping you from running your own SMTP server, as long as you don't want to relay. Then again, maybe they do block these connections as well... But it doesn't hurt to check :-) You can continue to send outbound through your ISPs SMTP server, with no adverse side effects. Or, if you really want to use your own, find another ISP, or convince the current one to let you through. (This is *rarely* possible with most providers once they have decided to filter :-) There are some more bizzare options, like mangling port numbers/tunneling/etc, but that pretty much requires you to have control over a box outside the firewall... and, if that was so, chances are you'd just use that one as your mailserver anyway :-) Consumer ISPs that block this sort of thing are still in the minority, so, if you have enough competition in your region (yes, if you are still in Calgary :-), it might pay to shop around a bit. > Is there absolutely *no* way around this as I would like to use > 'dyndns.org' and run my own SMTP server? TIA... -- duke -- Ryan Thompson <ryan@sasknow.com> Network Administrator, Accounts SaskNow Technologies - http://www.sasknow.com #106-380 3120 8th St E - Saskatoon, SK - S7H 0W2 Tel: 306-664-3600 Fax: 306-664-1161 Saskatoon Toll-Free: 877-727-5669 (877-SASKNOW) North America To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.BSF.4.21.0110050314240.75221-100000>