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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>It does indeed take quite a bit of time for JNOS to timeout trying to connect to external servers.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>If JNOS is successful reaching a “real” mail server, it typically gets a reject for doing something wrong. This causes JNOS to send the message back to the sender of the message informing of the reject.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>So, to prevent that from happening, I disabled forwarding of SMTP on the tunnel between JNOS and Linux. This causes the JNOS attempts to reach Internet mail servers to time out. At that point, JNOS tries the gateway.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>This timeout takes about 2 minutes. That’s kind-of annoying, especially when you’re trying to test a set-up or train people.<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>So, it seems like an “smtp use-gateway” command which could control JNOS’s gateway usage would be helpful. The options I originally suggested below seem good, except I’d change “like-dns” to “non-local”. For completeness, I’ll rewrite it here:<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>smtp use-gateway { LAST | first | always | non-local }<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>smtp use-gateway last # the default and current behavior; tries direct and, if it times out, passes to gateway<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>smtp use-gateway first # sends to the gateway first and, if that fails, tries direct<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>smtp use-gateway only # sends to the gateway only; does not try to send direct<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>smtp use-gateway non-local # if the host is found in domain.txt, behaves like “last” (tries to connect directly; otherwise it behaves like “only” (sends only to the gateway)<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Thoughts anyone? Is this reasonable? Do-able?<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Michael<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> Michael Fox - N6MEF [mailto:n6mef@mefox.org] <br><b>Sent:</b> Friday, March 11, 2011 3:34 PM<br><b>To:</b> 'TAPR xNOS Mailing List'<br><b>Subject:</b> FW: [nos-bbs] smtp gateway command<o:p></o:p></span></p></div></div><p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I wonder if it makes sense to have an smtp command that would control this.<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>My thinking is that you can control completely the machines in your domain.txt file. These would typically be the machines in your own network that you want to be able to connect to, even if external DNS is down. This is much like /etc/hosts in linux. JNOS looks in domain.txt first and, if not found, then consults DNS.<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>The same would apply to sending messages. So, since JNOS currently attempts direct delivery and, if that fails, sends to the smtp gateway, how about these two options<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>smtp use-gateway { LAST | first | always | like-dns }<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>smtp use-gateway last # the default and current behavior; tries direct and, if fails, passes to gateway<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>smtp use-gateway first # sends to the gateway first and, if that fails, tries direct<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>smtp use-gateway only # sends to the gateway only; does not try to send direct<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>smtp use-gateway like-dns # if the host is found in domain.txt, behaves like “last”; otherwise (needs to consult DNS) it behaves like “first”<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>I don’t know how hard that would be to code. And, if the failure is like Bill says, perhaps it’s not really needed. I just wonder if, at some point, repeated failed attempts to connect to some other MTA gets you on a blacklist such that you’re hosed going forward….<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Michael<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>N6MEF<o:p></o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in'><p class=MsoNormal style='margin-left:.5in'><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> nos-bbs-bounces@tapr.org [mailto:nos-bbs-bounces@tapr.org] <b>On Behalf Of </b>Wm Lewis<br><b>Sent:</b> Thursday, March 10, 2011 9:48 PM<br><b>To:</b> nos-bbs@tapr.org<br><b>Subject:</b> Re: [nos-bbs] smtp gateway command<o:p></o:p></span></p></div></div><p class=MsoNormal style='margin-left:.5in'><o:p> </o:p></p><p class=MsoNormal style='margin-left:.5in'><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Well, I agree that there should be a way to tell JNOS to always default to an smtp gateway.<br> <br>But I think the thought process way back when all this was developed was that jnos should<br>attempt the shortest path first, which meant using a gateway last.<br> <br>But, the upside is, if your station is setup correctly, even if jnos tries direct connects first, (and<br>they all get rejected due to bad authentication), then it tries your gateway, and it goes through,<br>*** the speed at which all this takes place is still so fast there is *almost* no noticable delay<br>in the mail reaching its destination.<br> <br>From *failed first* to *gateway success* delivery, is usually still less than 5-10 seconds.<br> <br>That's still pretty fast for email delivery.<br> <br>> Date: Thu, 10 Mar 2011 23:14:07 -0500<br>> From: bobtenty@gmail.com<br>> To: nos-bbs@tapr.org<br>> Subject: Re: [nos-bbs] smtp gateway command<br>> <br>> <br>> You have to set smtp usemx off so that mx record lookup is prevented so <br>> that smtp's<br>> are sent directly if they can be reached otherwise the smtp gateway will <br>> be used.<br>> Not ideal as I have found out and it can take a while before it tries <br>> the smtp gateway<br>> and in my experience can fail.<br>> <br>> I think there should be a setting so that outgoing mail is always <br>> directed to the smtp gateway<br>> like what you can with the smtp servers in linux (exim, postfix) , no <br>> questions asked.<br>> <br>> 73,<br>> <br>> Bob VE3TOK<br>> <br>> <br>> On 11-03-10 07:34 PM, Bill V WA7NWP wrote:<br>> > On Thu, Mar 10, 2011 at 3:33 PM, Bob Tenty<bobtenty@gmail.com> wrote:<br>> ><br>> >> I process all my mail in linux<br>> ><br>> > Could we, with appropriate local MX entries or other magic, send Email<br>> > directly to 44net entities and/or other selected sites while letting<br>> > everything else use the default SMTP gateway? Or just let the first<br>> > delivery attempt be direct and then pass it on to the default gateway<br>> > if that fails...<br>> ><br>> > 73<br>> > Bill - WA7NWP<br>> ><br>> > _______________________________________________<br>> > nos-bbs mailing list<br>> > nos-bbs@tapr.org<br>> > https://www.tapr.org/cgi-bin/mailman/listinfo/nos-bbs<br>> <br>> <br>> _______________________________________________<br>> nos-bbs mailing list<br>> nos-bbs@tapr.org<br>> https://www.tapr.org/cgi-bin/mailman/listinfo/nos-bbs<o:p></o:p></span></p></div></body></html>