Search Again: Re: I have a mail loop error I need help with. From: charles kline Date: Monday, March 29, 1999 Time: 6:36:00 pm >>I am pretty new to dns and I am having a little problem with one of my >>domains. We are using virtual hosting for the domain >>www.smoke-stoppers.com. I have EIMS running on another server and I am >>trying to use it to handle the mail for the smoke-stoppers domain. I have >>a form that is sending mail through EIMS to >>manager@mail.smoke-stoppers.com and EIMS is giving me an error: WARNING! >>mail loop exists for mail.smoke-stoppers.com >> >>Here is the setup: >> >>smoke-stoppers.com. NS primary-ns.macsultants.com. >> >>www2.smoke-stoppers.com. A 208.159.4.21 >>smoke-stoppers.com. MX 10 mail.smoke-stoppers.com. >> >>www.smoke-stoppers.com. A 208.159.4.24 >>mail.smoke-stoppers.com. A 208.159.4.101 > >A mail loop is caused when mail is forwarded around in a circle. It is >commonly caused by a server trying to send mail to itself. Here's why it >might do this: > >A mail server receives a message. It looks at the domain name in the To: >field. It first compares this against its internal list of names for which >it's responsible. If it isn't responsible (at least according to its >internal list), it looks up the MX record(s) for that domain and forwards >the message to a mail server that is responsible. However, if the DNS tells >the server that it is ultimately responsible for the message (has the MX >record with the lowest-numbered priority), it either sends the message to >itself and starts over, or notices, puts up an error message, and does >whatever its programmer felt like having it do with the message. > >Of course, a mail loop can also be caused by other misconfigurations of a >mail server. For instance, EIMS can automatically route all messages for a >particular domain to another server. That includes messages for domains >that EIMS is supposed to handle, so that the other server would just send >it right back. > >The upshot is, Charles, does EIMS on <mail.smoke-stoppers.com> know it's >responsible for <smoke-stoppers.com>? Yes, I have just checked and EIMS does know it is responsible for that domain. I have only the mail for address1@mail.smoke-stoppers.com being forwarded to an address name@msn.com I have the MX arecord with a priority of 10 Is there a way to test if it is the mail server or the dns? -- _______________________________________________________________ Charles Kline ckline@macsultants.com WebMaster - eCommerce Specialist MacSultants Professional Solutions for Computer Systems Phone# 609-273-3255 Fax# 609-273-3721

Messages In This Thread: I have a mail loop error I need help with. by charles kline on Mar 29, 1999 at 4:29:00 pm Re: I have a mail loop error I need help with. by Chris Buxton on Mar 29, 1999 at 6:25:00 pm Re: I have a mail loop error I need help with. by charles kline on Mar 29, 1999 at 6:36:00 pm Re: I have a mail loop error I need help with. by Allan Reichert on Mar 29, 1999 at 6:47:00 pm Re: I have a mail loop error I need help with. by charles kline on Mar 29, 1999 at 6:55:00 pm Re: I have a mail loop error I need help with. by Allan Reichert on Mar 29, 1999 at 7:06:00 pm Re: I have a mail loop error I need help with. by Chris Buxton on Mar 30, 1999 at 5:58:00 am Re: I have a mail loop error I need help with. by charles kline on Mar 30, 1999 at 9:08:00 pm Re: I have a mail loop error I need help with. by Chris Buxton on Mar 31, 1999 at 4:56:00 am