RE: [expert] pop-3
I can send maill out from outlook thru my linux box all day. Pinging rdcomputersolutions.net results in an "unknown host" ps (i am a windows computer expert not linux. I am learning linux :) ) Useing a simple tool such as ping help to toubleshoot your problem. pinging you again only this time adding mail to your domain ex. "mail.computersoultions.net" results in a response of Pinging mail.rdcomputersolutions.net [12.21.134.137] with 32 bytes of data: Request timed out. Request timed out. Request timed out. Request timed out. Ping statistics for 12.21.134.137 Packets: Sent = 4, Received = 0, Lost = 4 (100% loss), Approximate round trip tmimes in milli-seconds: Minimum = 0ms, Maximum = 0ms, Average = 0ms This makes me wonder 2 things... Are you running a firewall and if not have you set up an MX pointer to your server...? For now until you do you should have your friends and users use "mail.rdcomputersolutions.net as the reply to your e-mails. I was able to send you email useing [EMAIL PROTECTED] Let me know if you need any help Phil Connor [EMAIL PROTECTED] Registered Linux User #189889 thanks Robert - Original Message - From: "Woody" [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Saturday, November 04, 2000 4:14 PM Subject: Re: [expert] pop-3 Robert, Do not confuse POP-3 with SMTP. POP-3 is a way to RETRIEVE mail only. When you send mail, you utilize SMTP. It sounds like the most likely explanation is independent of all of the above though. Either your SMTP options in your E-mail program are incorrect (i.e.: an invalid SMTP host) or the DNS server (that the SMTP server you connect to to send mail) can not correctly resolve the domain of your mail host that is the final delivery point. The (traveling) life of an E-mail - Sender's mail client sends mail (SMTP) to it's listed SMTP host. The SMTP host then decides if the user is local: Yes, Skip to Drop step No, Pass mail on Pass mail onto server that holds the desired recipient (again utilizing SMTP) Drop mail into recipient's mailbox Recipient checks for mail (POP-3) - As for on-demand POP-3, that is controlled by the inetd daemon. When a request to the POP-3 port is received, inetd calls the POP-3 server program which then processes the actual request (to retrieve user's mail). The same goes for IMAP if you choose to *retrieve* your mail that way. Summary: your POP-3 settings on your server should not have anything to do with your server's ability to receive mail. Look either at your sending e-mail program's SMTP setting and/or check that your server's DNS entry is current and correct. Enjoy, Woody ([EMAIL PROTECTED]) rharvey wrote: under service control in linuxconf pop-3 says it it enabled on demand I can send an email at from mydomain.net but when I try to send a reply back or I try to send a new mail to my domain.net it says Host unknown (Name server: server1.rdcomputersolutions.net.: host not found) does on demand cause this? if not what does? please help. thanks Robert -- --- Gatewood Green Web Developer http://www.linux.org/ The first stop for Linux info on the Net Email: [EMAIL PROTECTED] --- All opinions expressed by me are my own and not necessarily endorsed by Linux Online, Inc. or Linux Headquarters, Inc. -- -- Keep in touch with http://mandrakeforum.com: Subscribe the "[EMAIL PROTECTED]" mailing list. Keep in touch with http://mandrakeforum.com: Subscribe the "[EMAIL PROTECTED]" mailing list.
Re: [expert] pop-3
Robert, Do not confuse POP-3 with SMTP. POP-3 is a way to RETRIEVE mail only. When you send mail, you utilize SMTP. It sounds like the most likely explanation is independent of all of the above though. Either your SMTP options in your E-mail program are incorrect (i.e.: an invalid SMTP host) or the DNS server (that the SMTP server you connect to to send mail) can not correctly resolve the domain of your mail host that is the final delivery point. The (traveling) life of an E-mail - Sender's mail client sends mail (SMTP) to it's listed SMTP host. The SMTP host then decides if the user is local: Yes, Skip to Drop step No, Pass mail on Pass mail onto server that holds the desired recipient (again utilizing SMTP) Drop mail into recipient's mailbox Recipient checks for mail (POP-3) - As for on-demand POP-3, that is controlled by the inetd daemon. When a request to the POP-3 port is received, inetd calls the POP-3 server program which then processes the actual request (to retrieve user's mail). The same goes for IMAP if you choose to *retrieve* your mail that way. Summary: your POP-3 settings on your server should not have anything to do with your server's ability to receive mail. Look either at your sending e-mail program's SMTP setting and/or check that your server's DNS entry is current and correct. Enjoy, Woody ([EMAIL PROTECTED]) rharvey wrote: under service control in linuxconf pop-3 says it it enabled on demand I can send an email at from mydomain.net but when I try to send a reply back or I try to send a new mail to my domain.net it says Host unknown (Name server: server1.rdcomputersolutions.net.: host not found) does on demand cause this? if not what does? please help. thanks Robert -- --- Gatewood Green Web Developer http://www.linux.org/ The first stop for Linux info on the Net Email: [EMAIL PROTECTED] --- All opinions expressed by me are my own and not necessarily endorsed by Linux Online, Inc. or Linux Headquarters, Inc. Keep in touch with http://mandrakeforum.com: Subscribe the "[EMAIL PROTECTED]" mailing list.
Re: [expert] pop-3
I can send maill out from outlook thru my linux box all day. I can't have any one reply to me or send me a message direct to my domain.net address. ther error is generated. my provider says everything is setup right on his end to have the mail from my domain directed to my linux box ip. try sending a message to [EMAIL PROTECTED] and see what error you get. ps (i am a windows computer expert not linux. I am learning linux :) ) thanks Robert - Original Message - From: "Woody" [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Saturday, November 04, 2000 4:14 PM Subject: Re: [expert] pop-3 Robert, Do not confuse POP-3 with SMTP. POP-3 is a way to RETRIEVE mail only. When you send mail, you utilize SMTP. It sounds like the most likely explanation is independent of all of the above though. Either your SMTP options in your E-mail program are incorrect (i.e.: an invalid SMTP host) or the DNS server (that the SMTP server you connect to to send mail) can not correctly resolve the domain of your mail host that is the final delivery point. The (traveling) life of an E-mail - Sender's mail client sends mail (SMTP) to it's listed SMTP host. The SMTP host then decides if the user is local: Yes, Skip to Drop step No, Pass mail on Pass mail onto server that holds the desired recipient (again utilizing SMTP) Drop mail into recipient's mailbox Recipient checks for mail (POP-3) - As for on-demand POP-3, that is controlled by the inetd daemon. When a request to the POP-3 port is received, inetd calls the POP-3 server program which then processes the actual request (to retrieve user's mail). The same goes for IMAP if you choose to *retrieve* your mail that way. Summary: your POP-3 settings on your server should not have anything to do with your server's ability to receive mail. Look either at your sending e-mail program's SMTP setting and/or check that your server's DNS entry is current and correct. Enjoy, Woody ([EMAIL PROTECTED]) rharvey wrote: under service control in linuxconf pop-3 says it it enabled on demand I can send an email at from mydomain.net but when I try to send a reply back or I try to send a new mail to my domain.net it says Host unknown (Name server: server1.rdcomputersolutions.net.: host not found) does on demand cause this? if not what does? please help. thanks Robert -- --- Gatewood Green Web Developer http://www.linux.org/ The first stop for Linux info on the Net Email: [EMAIL PROTECTED] --- All opinions expressed by me are my own and not necessarily endorsed by Linux Online, Inc. or Linux Headquarters, Inc. Keep in touch with http://mandrakeforum.com: Subscribe the "[EMAIL PROTECTED]" mailing list. Keep in touch with http://mandrakeforum.com: Subscribe the "[EMAIL PROTECTED]" mailing list.
RE: [expert] pop-3
pop-3 is how you retrieve your mail from a server. "on demand" is fine for this and isn't causing your problem. You provide so little information about what you are trying to do, I doubt anyone will be able to help you. What is the mail server named? Are you using sendmail, postfix, etc.? What is the machine name of your mail clients (the one that worked and the one that didn't)? Show us your DNS entries, particulary the MX record. Bill -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of rharvey Sent: Saturday, November 04, 2000 3:54 PM To: Expert Subject: [expert] pop-3 under service control in linuxconf pop-3 says it it enabled on demand I can send an email at from mydomain.net but when I try to send a reply back or I try to send a new mail to my domain.net it says Host unknown (Name server: server1.rdcomputersolutions.net.: host not found) does on demand cause this? if not what does? please help. thanks Robert Keep in touch with http://mandrakeforum.com: Subscribe the "[EMAIL PROTECTED]" mailing list.
Re: [expert] pop-3
You can't, they have to. Woody rharvey wrote: the mx record is on my providers domain how would I see the mx record there? - Original Message - From: "Bill Shirley" [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Saturday, November 04, 2000 4:38 PM Subject: RE: [expert] pop-3 pop-3 is how you retrieve your mail from a server. "on demand" is fine for this and isn't causing your problem. You provide so little information about what you are trying to do, I doubt anyone will be able to help you. What is the mail server named? Are you using sendmail, postfix, etc.? What is the machine name of your mail clients (the one that worked and the one that didn't)? Show us your DNS entries, particulary the MX record. Bill -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of rharvey Sent: Saturday, November 04, 2000 3:54 PM To: Expert Subject: [expert] pop-3 under service control in linuxconf pop-3 says it it enabled on demand I can send an email at from mydomain.net but when I try to send a reply back or I try to send a new mail to my domain.net it says Host unknown (Name server: server1.rdcomputersolutions.net.: host not found) does on demand cause this? if not what does? please help. thanks Robert -- --- Gatewood Green Web Developer http://www.linux.org/ The first stop for Linux info on the Net Email: [EMAIL PROTECTED] --- All opinions expressed by me are my own and not necessarily endorsed by Linux Online, Inc. or Linux Headquarters, Inc. Keep in touch with http://mandrakeforum.com: Subscribe the "[EMAIL PROTECTED]" mailing list.
RE: [expert] pop-3
You can look your mx record by using nslookup: [root@elmo msg]# nslookup -type=mx rdcomputersolutions.net Server: elmo.lan.shirleyfamily.net Address: 192.168.4.1 rdcomputersolutions.net preference = 10, mail exchanger = server1.rdcomputersolutions.net rdcomputersolutions.net nameserver = ns1.scottsboro.org rdcomputersolutions.net nameserver = ns2.scottsboro.org ns1.scottsboro.org internet address = 12.21.132.2 ns2.scottsboro.org internet address = 12.21.132.3 [root@elmo msg]# ping server1.rdcomputersolutions.net ping: unknown host server1.rdcomputersolutions.net [root@elmo msg]# ping rdcomputersolutions.net ping: unknown host rdcomputersolutions.net [root@elmo msg]# ping mail.rdcomputersolutions.net PING mail.rdcomputersolutions.net (12.21.134.137): 56 data bytes --- mail.rdcomputersolutions.net ping statistics --- 8 packets transmitted, 0 packets received, 100% packet loss You have no IP address for your domain (rdcomputersolutions.net) or the host (server1.rdcomputersolutions.net) that your MX record is pointing to. My guess of mail.rdcomputersolutions.net has an IP address but will not return a ping. Here's what I got when I e-mailed you at [EMAIL PROTECTED] : -- This is the Postfix program at host server1.rdcomputersolutions.net. I'm sorry to have to inform you that the message returned below could not be delivered to one or more destinations. For further assistance, please contact [EMAIL PROTECTED] If you do so, please include this problem report. You can delete your own text from the message returned below. The Postfix program [EMAIL PROTECTED]: mail for mail.rdcomputersolutions.net loops back to myself -- Are you running postfix? Is this your postfix reporting the error? Your DNS provider need to fix your zone. Bill -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of rharvey Sent: Saturday, November 04, 2000 6:35 PM To: [EMAIL PROTECTED] Subject: Re: [expert] pop-3 the mx record is on my providers domain how would I see the mx record there? - Original Message - From: "Bill Shirley" [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Saturday, November 04, 2000 4:38 PM Subject: RE: [expert] pop-3 pop-3 is how you retrieve your mail from a server. "on demand" is fine for this and isn't causing your problem. You provide so little information about what you are trying to do, I doubt anyone will be able to help you. What is the mail server named? Are you using sendmail, postfix, etc.? What is the machine name of your mail clients (the one that worked and the one that didn't)? Show us your DNS entries, particulary the MX record. Bill -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of rharvey Sent: Saturday, November 04, 2000 3:54 PM To: Expert Subject: [expert] pop-3 under service control in linuxconf pop-3 says it it enabled on demand I can send an email at from mydomain.net but when I try to send a reply back or I try to send a new mail to my domain.net it says Host unknown (Name server: server1.rdcomputersolutions.net.: host not found) does on demand cause this? if not what does? please help. thanks Robert -- -- Keep in touch with http://mandrakeforum.com: Subscribe the "[EMAIL PROTECTED]" mailing list. Keep in touch with http://mandrakeforum.com: Subscribe the "[EMAIL PROTECTED]" mailing list.
Re: [expert] pop-3
Your ISP (or whoever manages your domain's DNS) set's up the MX record. It's DNS level information. The MX tells a mail server where to send mail when an email is sent with out using a fully qualifed computer name. i.e. rdcomputersolutions.net specifies a domain, but not a particular computer. mail.rdcomputersolutions.net specifies an exact machine/server/computer. DNS provides the MX record so that [EMAIL PROTECTED] is a valid email address. Keep in mind that an email address is officially user@computer where computer is an exact pointer to a valid server. your MX record says that server1.rdcomputersolutions.net is the default computer to send mail to if a real computer name is not given. Currently, your DNS has no record of the IP for server1.rdcomputersolutions.net. However, your DNS does have a valid IP on record for mail.rdcomputersolutions.net which is the normal convention for a default mail server in a given domain. The *ISP* needs to either give server1.rdcomputersolutions.net a valid IP or change your domain's MX record to reflect mail.rdcomputersolutions.net which appears to point to your server. Until then, fix your loopback issue Bill has pointed out and set your email client to use [EMAIL PROTECTED] as a reply-to address. To fix your loopback problem, tell postfix that it should accept mail for rdcomputersolutions.net and mail.rdcomputersolutions.net (or server1.rdcomputersolutions.net if you choose to keep that as your server's name or both to be safe) So if I read Postfix's instuctions correctly (I use qmail or sendmail myself) you need in /etc/postfix/main.cf myorigin = $mydomain mydestination = $mydomain, $myhostname, localhost, localhost.localdomain alternatively (this should all be on one line, mail program may break it up) mydestination = rdcomputersolutions.net, mail.rdcomputersolutions.net, server1.rdcomputersolutions.net, localhost, localhost.localdomain The mydesitnation variable needs to contain a comma separated list of all the computer names that this server should accept mail for. $mydomain and $myhostname appear to be place holders for the obvious values. To accept mail for mail.rdcomputersolutions.net, you need to add that to the mydestination line (or change your hostname to mail.rdcomputersolutions.net) Good luck, Woody rharvey wrote: so do I need to setup a mx record on my linux box or have my provider set this up correctly on their dns ? - Original Message - From: "Bill Shirley" [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Saturday, November 04, 2000 6:52 PM Subject: RE: [expert] pop-3 You can look your mx record by using nslookup: [root@elmo msg]# nslookup -type=mx rdcomputersolutions.net Server: elmo.lan.shirleyfamily.net Address: 192.168.4.1 rdcomputersolutions.net preference = 10, mail exchanger = server1.rdcomputersolutions.net rdcomputersolutions.net nameserver = ns1.scottsboro.org rdcomputersolutions.net nameserver = ns2.scottsboro.org ns1.scottsboro.org internet address = 12.21.132.2 ns2.scottsboro.org internet address = 12.21.132.3 [root@elmo msg]# ping server1.rdcomputersolutions.net ping: unknown host server1.rdcomputersolutions.net [root@elmo msg]# ping rdcomputersolutions.net ping: unknown host rdcomputersolutions.net [root@elmo msg]# ping mail.rdcomputersolutions.net PING mail.rdcomputersolutions.net (12.21.134.137): 56 data bytes --- mail.rdcomputersolutions.net ping statistics --- 8 packets transmitted, 0 packets received, 100% packet loss You have no IP address for your domain (rdcomputersolutions.net) or the host (server1.rdcomputersolutions.net) that your MX record is pointing to. My guess of mail.rdcomputersolutions.net has an IP address but will not return a ping. Here's what I got when I e-mailed you at [EMAIL PROTECTED] : -- This is the Postfix program at host server1.rdcomputersolutions.net. I'm sorry to have to inform you that the message returned below could not be delivered to one or more destinations. For further assistance, please contact [EMAIL PROTECTED] If you do so, please include this problem report. You can delete your own text from the message returned below. The Postfix program [EMAIL PROTECTED]: mail for mail.rdcomputersolutions.net loops back to myself -- Are you running postfix? Is this your postfix reporting the error? Your DNS provider need to fix your zone. Bill -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of rharvey Sent: Saturday, November 04, 2000 6:35 PM To: [EMAIL PROTECTED] Subject: Re: [expert] pop-3 the mx record is on my providers domain how would I see the mx record there?
Re: [expert] pop-3
rharvey wrote: so do I need to setup a mx record on my linux box or have my provider set this up correctly on their dns ? Robert - It looks like you have an MX record already. Your MX record points to a machine called "server1.rdcomputersolutions.net". The problem is that there is no A (address) record for server1.rdcomputersolutions.net. So when someone tries to send mail to [EMAIL PROTECTED], their mail system first does an MX record lookup and finds out "to send e-mail to someone at rdcomputersolutions.net, you must send it to the machine server1.rdcomputersolutions.net". Then, it does an A record lookup on server1.rdcomputersolutions.net to get its IP address, but since there is no A record, the mail software can't get the IP address, so it can't send the mail. At this point, the simplest route is probably to ask the person handling your DNS to add an A record for server1.rdcomputersolutions.net or, if that's not the machine where you want your mail going, to change the MX record to point to the proper machine. - Jeff Keep in touch with http://mandrakeforum.com: Subscribe the "[EMAIL PROTECTED]" mailing list.
