Re: What are the SMTP rules for sending mail to FreeBSD
# [EMAIL PROTECTED] / 2003-01-04 14:02:46 +1030: On Thursday, 2 January 2003 at 16:53:05 +0100, Roman Neuhauser wrote: plus, you stuff the output in $myfile, and get the input from it as well. How's that supposed to work? :) Heh. You're looking at this section, no doubt: cat $myfile server=`egrep -i $myfile In: [HE][HE]LO|sed 's/^.*LO *//' ` if [ $server = ]; then server=`egrep -i $myfile ^Subject.*errors from |sed 's/^Subject.*errors from //; s:\[.*::g' ` fi Confusing, isn't it? The thing is, this program is a filter. The first line copies stdin to $myfile for future (multiple) readings. If it weren't a filter, the cat command would still read from stdin, so if it were a terminal, it would just appear to hang. Ok, so you pipe the Postfix-generated message into B which slurps it into $myfile and that is where you access it... I'm just a luser, so excuse me if this is nonsense, but do you do that because stdin is not seekable? -- If you cc me or remove the list(s) completely I'll most likely ignore your message.see http://www.eyrie.org./~eagle/faqs/questions.html To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: What are the SMTP rules for sending mail to FreeBSD
On Sunday, 5 January 2003 at 16:16:22 +0100, Roman Neuhauser wrote: # [EMAIL PROTECTED] / 2003-01-04 14:02:46 +1030: On Thursday, 2 January 2003 at 16:53:05 +0100, Roman Neuhauser wrote: plus, you stuff the output in $myfile, and get the input from it as well. How's that supposed to work? :) Heh. You're looking at this section, no doubt: cat $myfile server=`egrep -i $myfile In: [HE][HE]LO|sed 's/^.*LO *//' ` if [ $server = ]; then server=`egrep -i $myfile ^Subject.*errors from |sed 's/^Subject.*errors from //; s:\[.*::g' ` fi Confusing, isn't it? The thing is, this program is a filter. The first line copies stdin to $myfile for future (multiple) readings. If it weren't a filter, the cat command would still read from stdin, so if it were a terminal, it would just appear to hang. Ok, so you pipe the Postfix-generated message into B which slurps it into $myfile and that is where you access it... I'm just a luser, so excuse me if this is nonsense, but do you do that because stdin is not seekable? Yes, exactly. Greg -- When replying to this message, please copy the original recipients. If you don't, I may ignore the reply or reply to the original recipients. For more information, see http://www.lemis.com/questions.html See complete headers for address and phone numbers To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: What are the SMTP rules for sending mail to FreeBSD
On 2003-01-05 16:16, Roman Neuhauser [EMAIL PROTECTED] wrote: # [EMAIL PROTECTED] / 2003-01-04 14:02:46 +1030: cat $myfile server=`egrep -i $myfile In: [HE][HE]LO|sed 's/^.*LO *//' ` if [ $server = ]; then server=`egrep -i $myfile ^Subject.*errors from |sed 's/^Subject.*errors from //; s:\[.*::g' ` fi Confusing, isn't it? The thing is, this program is a filter. The first line copies stdin to $myfile for future (multiple) readings. Ok, so you pipe the Postfix-generated message into B which slurps it into $myfile and that is where you access it... I'm just a luser, so excuse me if this is nonsense, but do you do that because stdin is not seekable? Sort of. Standard input can be seekable. When you redirect it using something like: % blah filename The blah program can seek its stdin. Pipes on the other hand are not seekable. - Giorgos To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: What are the SMTP rules for sending mail to FreeBSD
On Thursday, 2 January 2003 at 16:53:05 +0100, Roman Neuhauser wrote: # [EMAIL PROTECTED] / 2003-01-02 16:40:45 +0100: # [EMAIL PROTECTED] / 2002-12-30 11:26:22 +1030: On Sunday, 29 December 2002 at 18:46:12 +0100, Roman Neuhauser wrote: # [EMAIL PROTECTED] / 2002-12-29 10:55:11 +1030: ... For more information, take a look at the following, which is a message I send to systems which appear to be bona fide attempts from broken reverse addresses. Looking at the name of the sender, I'm sure this one is not bona fide, and I didn't really send the message. Most of my double bounces come from spammers. do you have that script publically available? I'd like to use that, too. Yes, it's at http://www.lemis.com/B. Is that the version you actually use? I believe I found a bug: ... plus, you stuff the output in $myfile, and get the input from it as well. How's that supposed to work? :) Heh. You're looking at this section, no doubt: cat $myfile server=`egrep -i $myfile In: [HE][HE]LO|sed 's/^.*LO *//' ` if [ $server = ]; then server=`egrep -i $myfile ^Subject.*errors from |sed 's/^Subject.*errors from //; s:\[.*::g' ` fi Confusing, isn't it? The thing is, this program is a filter. The first line copies stdin to $myfile for future (multiple) readings. If it weren't a filter, the cat command would still read from stdin, so if it were a terminal, it would just appear to hang. Greg -- When replying to this message, please copy the original recipients. If you don't, I may ignore the reply or reply to the original recipients. For more information, see http://www.lemis.com/questions.html See complete headers for address and phone numbers To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: What are the SMTP rules for sending mail to FreeBSD
# [EMAIL PROTECTED] / 2002-12-30 11:26:22 +1030: On Sunday, 29 December 2002 at 18:46:12 +0100, Roman Neuhauser wrote: # [EMAIL PROTECTED] / 2002-12-29 10:55:11 +1030: ... For more information, take a look at the following, which is a message I send to systems which appear to be bona fide attempts from broken reverse addresses. Looking at the name of the sender, I'm sure this one is not bona fide, and I didn't really send the message. Most of my double bounces come from spammers. do you have that script publically available? I'd like to use that, too. Yes, it's at http://www.lemis.com/B. Is that the version you actually use? I believe I found a bug: --- B.orig Thu Jan 2 16:25:28 2003 +++ B Thu Jan 2 16:37:08 2003 @@ -59,7 +59,7 @@ postmaster=postmaster@$domain fi if [ $hostmaster = ]; then - hostmaster=`nslookup -q=soa wantech.de|grep mail addr|sed 's:.*= ::; s:\.:@:'` + hostmaster=`nslookup -q=soa $domain|grep mail addr|sed 's:.*= ::; s:\.:@:'` fi if [ $hostmaster = ]; then hostmaster=hostmaster@$domain -- If you cc me or remove the list(s) completely I'll most likely ignore your message.see http://www.eyrie.org./~eagle/faqs/questions.html To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: What are the SMTP rules for sending mail to FreeBSD
On Thursday, 2 January 2003 at 16:40:45 +0100, Roman Neuhauser wrote: # [EMAIL PROTECTED] / 2002-12-30 11:26:22 +1030: On Sunday, 29 December 2002 at 18:46:12 +0100, Roman Neuhauser wrote: # [EMAIL PROTECTED] / 2002-12-29 10:55:11 +1030: ... For more information, take a look at the following, which is a message I send to systems which appear to be bona fide attempts from broken reverse addresses. Looking at the name of the sender, I'm sure this one is not bona fide, and I didn't really send the message. Most of my double bounces come from spammers. do you have that script publically available? I'd like to use that, too. Yes, it's at http://www.lemis.com/B. Is that the version you actually use? I believe I found a bug: --- B.origThu Jan 2 16:25:28 2003 +++ B Thu Jan 2 16:37:08 2003 @@ -59,7 +59,7 @@ postmaster=postmaster@$domain fi if [ $hostmaster = ]; then - hostmaster=`nslookup -q=soa wantech.de|grep mail addr|sed 's:.*= ::; s:\.:@:'` + hostmaster=`nslookup -q=soa $domain|grep mail addr|sed 's:.*= ::; s:\.:@:'` fi if [ $hostmaster = ]; then hostmaster=hostmaster@$domain Heh. Guess who'd been giving me problems lately. Yes, I found that bug this morning and fixed it. I've also put in a check for completely unidentifiable domains. Take another look. Greg -- When replying to this message, please copy the original recipients. If you don't, I may ignore the reply or reply to the original recipients. For more information, see http://www.lemis.com/questions.html See complete headers for address and phone numbers To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: What are the SMTP rules for sending mail to FreeBSD
# [EMAIL PROTECTED] / 2002-12-30 11:26:22 +1030: On Sunday, 29 December 2002 at 18:46:12 +0100, Roman Neuhauser wrote: # [EMAIL PROTECTED] / 2002-12-29 10:55:11 +1030: ... For more information, take a look at the following, which is a message I send to systems which appear to be bona fide attempts from broken reverse addresses. Looking at the name of the sender, I'm sure this one is not bona fide, and I didn't really send the message. Most of my double bounces come from spammers. do you have that script publically available? I'd like to use that, too. Yes, it's at http://www.lemis.com/B. thanks! -- If you cc me or remove the list(s) completely I'll most likely ignore your message.see http://www.eyrie.org./~eagle/faqs/questions.html To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: What are the SMTP rules for sending mail to FreeBSD
On Sat, Dec 28, 2002 at 09:03:08PM -0800, Kris Kennaway wrote: freebsd.org does not care if your reverse DNS mapping points back to the name you identified yourself with, it only checks that the name the server IDs itself as when submitting email resolves to the correct IP address. Many people (including me) have a working setup where reverse DNS mappings do not give back the original hostname we ID with. Kris the mailing lists and user accounts are fairly forgiving, but the gnats/pr stuff doesn't seem to be... is that by design? right now I'm filling out the send-pr form, :w'ing it, then scp'ing it out to a viable mailer and hand-editing the comment stuff out and sending that... (current setup is a pair of fbsd clients behind a redcrap ipmasq (natd)... the redhat machine CAN send pr's, its sendmail smarthost/masq stuff works, I can't get the fbsd ones to do the right thing tho...) -- -Erik [EMAIL PROTECTED] [http://math.smsu.edu/~erik] The opinions expressed by me are not necessarily opinions. In all probability, they are random rambling, and to be ignored. Failure to ignore may result in severe boredom or confusion. Shake well before opening. Keep Refrigerated. To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: What are the SMTP rules for sending mail to FreeBSD
# [EMAIL PROTECTED] / 2002-12-29 10:55:11 +1030: ... For more information, take a look at the following, which is a message I send to systems which appear to be bona fide attempts from broken reverse addresses. Looking at the name of the sender, I'm sure this one is not bona fide, and I didn't really send the message. Most of my double bounces come from spammers. Greg PLEASE READ THIS MESSAGE. It contains important information about problems at your site. It is machine generated, but it is intended to be intelligible. do you have that script publically available? I'd like to use that, too. -- If you cc me or remove the list(s) completely I'll most likely ignore your message.see http://www.eyrie.org./~eagle/faqs/questions.html To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: What are the SMTP rules for sending mail to FreeBSD
# [EMAIL PROTECTED] / 2002-12-28 19:15:49 +0100: Today Harry Tabak wrote: Mail sent from my main server, gatehouse.quadtelecom.com (66.45.116.138) gets rejected. _450_Client_host_rejected:_cannot_find_your_hostname,_[66.45.116.138] If 450 is some error code, then it's only a _temporary_ error/failure (RFC 1893). Maybe the DNS servers using the old (cached) data. ISTR Postfix replies with 450 to (almost) all errors by default. -- If you cc me or remove the list(s) completely I'll most likely ignore your message.see http://www.eyrie.org./~eagle/faqs/questions.html To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: What are the SMTP rules for sending mail to FreeBSD
ISTR Postfix replies with 450 to (almost) all errors by default. And there are errors where you need to escalate the 4xx response to 554 to stop the sending MTA from re-trying for days, or just harvest the 4xx ip's to a new .map filean block with 554. Postfix's new sender address verification is extremely effective in blocking crap that used to get through, but it always returns 4xx so your reject counts go through the roof as SAV 4xx rejects are re-tried 100's of times. But, in fact, this is more of a resource consumption for the senders than it is on your MX. And the advantage of keeping this crap out of your system outweighs the higher rate of repeated rejects. Len To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: What are the SMTP rules for sending mail to FreeBSD
On Sunday, December 29, 2002, at 10:06 AM, Len Conrad wrote: ISTR Postfix replies with 450 to (almost) all errors by default. And there are errors where you need to escalate the 4xx response to 554 to stop the sending MTA from re-trying for days, or just harvest the 4xx ip's to a new .map filean block with 554. Postfix's new sender address verification is extremely effective in blocking crap that used to get through, but it always returns 4xx so your reject counts go through the roof as SAV 4xx rejects are re-tried 100's of times. But, in fact, this is more of a resource consumption for the senders than it is on your MX. And the advantage of keeping this crap out of your system outweighs the higher rate of repeated rejects. Sounds great. Maybe I'll convert to Postfix soon enough! -john To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: What are the SMTP rules for sending mail to FreeBSD
On Sunday, 29 December 2002 at 18:46:12 +0100, Roman Neuhauser wrote: # [EMAIL PROTECTED] / 2002-12-29 10:55:11 +1030: ... For more information, take a look at the following, which is a message I send to systems which appear to be bona fide attempts from broken reverse addresses. Looking at the name of the sender, I'm sure this one is not bona fide, and I didn't really send the message. Most of my double bounces come from spammers. do you have that script publically available? I'd like to use that, too. Yes, it's at http://www.lemis.com/B. Greg -- When replying to this message, please copy the original recipients. If you don't, I may ignore the reply or reply to the original recipients. For more information, see http://www.lemis.com/questions.html See complete headers for address and phone numbers To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
What are the SMTP rules for sending mail to FreeBSD
Mail sent from my main server, gatehouse.quadtelecom.com (66.45.116.138) gets rejected. _450_Client_host_rejected:_cannot_find_your_hostname,_[66.45.116.138] What are the rules for sending mail! I'm not a spammer -- I've never sent spam!!! Your rejection is very disconcerting. Harry Tabak [EMAIL PROTECTED] To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: What are the SMTP rules for sending mail to FreeBSD
Harry Tabak wrote: Mail sent from my main server, gatehouse.quadtelecom.com (66.45.116.138) gets rejected. _450_Client_host_rejected:_cannot_find_your_hostname,_[66.45.116.138] What are the rules for sending mail! I'm not a spammer -- I've never sent spam!!! Your rejection is very disconcerting. Harry Tabak [EMAIL PROTECTED] # nslookup 66.45.116.138 Server: ns1.ljusdal.net Address: 80.65.204.5 Name:steelcityhosting.com Address: 66.45.116.138 66.45.116.138 does not resolve to gatehouse.quadtelecom.com, it resolves to steelcityhosting.com. Fix your reverse and it will most likely accept your emails. -- R To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: What are the SMTP rules for sending mail to FreeBSD
Date: Sat, 28 Dec 2002 14:50:54 +0100 From: rocky [EMAIL PROTECTED] To: [EMAIL PROTECTED] CC: rocky [EMAIL PROTECTED] References: [EMAIL PROTECTED] Harry Tabak wrote: Mail sent from my main server, gatehouse.quadtelecom.com (66.45.116.138) gets rejected. _450_Client_host_rejected:_cannot_find_your_hostname,_[66.45.116.138] What are the rules for sending mail! I'm not a spammer -- I've never sent spam!!! Your rejection is very disconcerting. Harry Tabak [EMAIL PROTECTED] # nslookup 66.45.116.138 Server: ns1.ljusdal.net Address: 80.65.204.5 Name:steelcityhosting.com Address: 66.45.116.138 66.45.116.138 does not resolve to gatehouse.quadtelecom.com, it resolves to steelcityhosting.com. Fix your reverse and it will most likely accept your emails. -- R Easier said than done. I've been assigned 66.45.116.136/29 by the ISP. I control DNS for quadtelecom.com, but I don't control the reverse lookup. I'd like to know the exact algorithm in use, so that I can negotiate with my ISP. For example, how are are hosts with multiple IP adresses handled? Harry To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: What are the SMTP rules for sending mail to FreeBSD
On Sat, Dec 28, 2002 at 08:53:15AM -0500, Harry Tabak wrote: Mail sent from my main server, gatehouse.quadtelecom.com (66.45.116.138) gets rejected. _450_Client_host_rejected:_cannot_find_your_hostname,_[66.45.116.138] What are the rules for sending mail! I'm not a spammer -- I've never sent spam!!! Your rejection is very disconcerting. Your mail server is identifying itself as [66.45.116.138] instead of a host with (valid) forward DNS records (hosts that do this are blocked as a -- very effective -- anti-spam measure). Fix your mail server to identify itself as gatehouse.quadtelecom.com and you should get past this filter. Kris msg13469/pgp0.pgp Description: PGP signature
Re: What are the SMTP rules for sending mail to FreeBSD
Easier said than done. I've been assigned 66.45.116.136/29 by the ISP. .136 is not a power of 2 which is required for classless reverse delegation. It should be .132/29 or .140/29 I control DNS for quadtelecom.com, but I don't control the reverse lookup. I'd like to know the exact algorithm in use, so that I can negotiate with my ISP. For sub-Class C delegation, see the DNS BIND book, 4th edition. 1. Your ISP creates a arbitrarily named node in the reverse domain and delegates the zone to you: tabak.116.45.66.in-addr.arpa. NS ns1.quadtelecom.com. tabak.116.45.66.in-addr.arpa. NS ns2.quadtelecom.com. 2. then for each ip in your tabak subzone he create a CNAME in his NS: 133.116.45.66.in-addr.arpa. CNAME 133.tabak.116.45.66.in-addr.arpa. . . . 139.116.45.66.in-addr.arpa. CNAME 139.tabak.116.45.66.in-addr.arpa. 3. then in your NS: 133.tabak.116.45.66.in-addr.arpa. PTR name.what.ever. . . . 139.tabak.116.45.66.in-addr.arpa. PTR hostname.some.dom. The rule is that the parent domain's CNAME rdata field must, of course, be matched the child domain's PTR owner field. For example, how are are hosts with multiple IP adresses handled? put only one PTR per ip. Len To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: What are the SMTP rules for sending mail to FreeBSD
Today Harry Tabak wrote: Mail sent from my main server, gatehouse.quadtelecom.com (66.45.116.138) gets rejected. _450_Client_host_rejected:_cannot_find_your_hostname,_[66.45.116.138] If 450 is some error code, then it's only a _temporary_ error/failure (RFC 1893). Maybe the DNS servers using the old (cached) data. -andrew To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: What are the SMTP rules for sending mail to FreeBSD
On Sat, Dec 28, 2002 at 08:53:15AM -0500, Harry Tabak wrote: Mail sent from my main server, gatehouse.quadtelecom.com (66.45.116.138) gets rejected. _450_Client_host_rejected:_cannot_find_your_hostname,_[66.45.116.138] I'm getting this all the time too. It seems that after a while my mails just get through anyway. In fact, just now they've been getting through first time. I'm sure my DNS is all messed up but it seems odd it gets through after a few retries -- is that part of the filter? If it's persistent, let it in? Does anybody know when this was implemented? -lewiz. -- Seminars, n.: From semi and arse, hence, any half-assed discussion. --|| url: http://lewiz.info/ | http://www.westwood.karoo.net/pgpkey ||-- msg13521/pgp0.pgp Description: PGP signature
Re: What are the SMTP rules for sending mail to FreeBSD
On Saturday, 28 December 2002 at 11:27:53 -0600, Len Conrad wrote: Easier said than done. I've been assigned 66.45.116.136/29 by the ISP. .136 is not a power of 2 which is required for classless reverse delegation. They don't need to be powers of 2. It should be .132/29 or .140/29 No, they're not powers of 2 either. The requirement for a /29 is that the last 3 bits of the binary representation be 0. Valid values in this area are 128, 136 and 144. I control DNS for quadtelecom.com, but I don't control the reverse lookup. I'd like to know the exact algorithm in use, so that I can negotiate with my ISP. For sub-Class C delegation, see the DNS BIND book, 4th edition. snip I think the real problem here is that Harry's ISP is too clueless to handle reverse delegation. Another possibility is that they deliberately don't allocate a reverse address in order to stop him from sending mail directly; if they relay via their mail server (which appears to be mail.steelcityhosting.com, 66.45.117.3). For more information, take a look at the following, which is a message I send to systems which appear to be bona fide attempts from broken reverse addresses. Looking at the name of the sender, I'm sure this one is not bona fide, and I didn't really send the message. Most of my double bounces come from spammers. Greg PLEASE READ THIS MESSAGE. It contains important information about problems at your site. It is machine generated, but it is intended to be intelligible. The attached message is caused by a misconfiguration of your DNS server: your mail server 65.60.8.2 claims to be localhost.localdomain, which does not resolve. As an anti-spam measure, we require reverse lookups for all mail we accept. This message will not be delivered unless you correct your DNS configuration. Since this situation has continued for a considerable period of time, we must assume that it is not a transient problem. If you believe this assessment is incorrect, or if you need help resolving the problem, please contact me by phone at +61-8-8388-8286 between 9 am and 6 pm Central Australian time (currently GMT+1030). *** [EMAIL PROTECTED], you have been copied on this message because we have reasonable grounds to believe that you are not aware of these problems, and that you have entrusted localdomain to deliver your mail for you. This message is an indication that localdomain is not perfoming this task correctly. If the situation continues, you should contact localdomain support and get them to rectify the problem. Greg Lehey From [EMAIL PROTECTED] Thu Dec 26 15:50:55 2002 Return-Path: [EMAIL PROTECTED] Delivered-To: [EMAIL PROTECTED] Received: by wantadilla.lemis.com (Postfix) id CD3025194A; Thu, 26 Dec 2002 15:50:55 +1030 (CST) Date: Thu, 26 Dec 2002 15:50:55 +1030 (CST) From: [EMAIL PROTECTED] (Mail Delivery System) To: [EMAIL PROTECTED] (Postmaster) Subject: Postfix SMTP server: errors from unknown[65.60.8.2] Message-Id: [EMAIL PROTECTED] X-Spam-Status: No, hits=1.1 required=5.0 tests=MAILER_DAEMON,MAILTO_TO_SPAM_ADDR,SPAM_PHRASE_00_01 version=2.41 X-Spam-Level: * Transcript of session follows. Out: 220 wantadilla.lemis.com ESMTP Postfix In: HELO localhost.localdomain Out: 250 wantadilla.lemis.com In: MAIL FROM: [EMAIL PROTECTED] Out: 250 Ok In: RCPT TO: [EMAIL PROTECTED] Out: 450 Client host rejected: cannot find your hostname, [65.60.8.2] Session aborted, reason: lost connection -- When replying to this message, please copy the original recipients. If you don't, I may ignore the reply or reply to the original recipients. For more information, see http://www.lemis.com/questions.html See complete headers for address and phone numbers To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: What are the SMTP rules for sending mail to FreeBSD
On Saturday, 28 December 2002 at 22:32:30 +, lewiz wrote: On Sat, Dec 28, 2002 at 08:53:15AM -0500, Harry Tabak wrote: Mail sent from my main server, gatehouse.quadtelecom.com (66.45.116.138) gets rejected. _450_Client_host_rejected:_cannot_find_your_hostname,_[66.45.116.138] I'm getting this all the time too. It seems that after a while my mails just get through anyway. In fact, just now they've been getting through first time. I'm sure my DNS is all messed up but it seems odd it gets through after a few retries -- is that part of the filter? If it's persistent, let it in? No, this means that your DNS is flaky. As somebody observed, this is a transient error. Your MTA retries about every 30 minutes for about 5 days, and sooner or later the reverse lookup succeeds, and your mail is delivered. Does anybody know when this was implemented? It's been around for some years. Greg -- When replying to this message, please copy the original recipients. If you don't, I may ignore the reply or reply to the original recipients. For more information, see http://www.lemis.com/questions.html See complete headers for address and phone numbers To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: What are the SMTP rules for sending mail to FreeBSD
On Saturday, December 28, 2002, at 04:22 PM, Greg 'groggy' Lehey wrote: No, this means that your DNS is flaky. As somebody observed, this is a transient error. Your MTA retries about every 30 minutes for about 5 days, and sooner or later the reverse lookup succeeds, and your mail is delivered. I just change my sendmail config (the .mc file) to send a resolvable domain name in the EHLO/HELO part of the SMTP conversation. I use an unresolvable domain name inside of my home network, and my mail server is internal, so of course servers like FreeBSD's would reject my hostname as unresolvable. If you're using sendmail, check out confDOMAIN_NAME. -john To Unsubscribe: send mail to [EMAIL PROTECTED] with unsubscribe freebsd-questions in the body of the message
Re: What are the SMTP rules for sending mail to FreeBSD
On Sat, Dec 28, 2002 at 10:34:28PM -0500, Fuzzy wrote: On Sun, 29 Dec 2002, Greg 'groggy' Lehey wrote: On Saturday, 28 December 2002 at 22:32:30 +, lewiz wrote: No, this means that your DNS is flaky. As somebody observed, this is a transient error. Your MTA retries about every 30 minutes for about 5 days, and sooner or later the reverse lookup succeeds, and your mail is delivered. I'm confused. I have an IP that has a lot of forward names, but the PTR points at the ISPs name. I don't have any trouble with sendmail sending and receiving internet email. even tho the PTR returns one of many name for the IP? freebsd.org does not care if your reverse DNS mapping points back to the name you identified yourself with, it only checks that the name the server IDs itself as when submitting email resolves to the correct IP address. Many people (including me) have a working setup where reverse DNS mappings do not give back the original hostname we ID with. Kris msg13535/pgp0.pgp Description: PGP signature
