Mail server madness (with regards to domain names)
Hello, lately, outside (non-local) SMTP servers have begun to go crazy. For example, I have a standard entry in my qmail virtualdomains file for all mail to [EMAIL PROTECTED] - it goes to the user scode. But if I attempt to send an E-Mail from an outside source (a few have been tried) to, say, [EMAIL PROTECTED], the SMTP server making the final delivery suddently goes mad and does an RCTP [EMAIL PROTECTED]! What might cause this? I even changed "scode" back from being a CNAME to being an A record in the DNS configuration, in case that was the cause. Note, my main address "[EMAIL PROTECTED]" works fine. mail.infidyne.com is the MX for the domain. Any suggestions would be appreciated. The strange part is that we didn't have this problem earlier. Thank you, -- / Peter Schuller, InfiDyne Technologies HB PGP userID: 0x5584BD98 or 'Peter Schuller <[EMAIL PROTECTED]>' Key retrival: Send an E-Mail to [EMAIL PROTECTED] E-Mail: [EMAIL PROTECTED] Web: http://scode.infidyne.com
Re: Mail server madness (with regards to domain names)
On Wed, Jan 17, 2001 at 03:47:34PM -0500, Peter Schuller wrote: > > What might cause this? I even changed "scode" back from being a CNAME to > being an A record in the DNS configuration, in case that was the cause. Try creating an MX for scode.infidyne.com. RC -- +--- | Ricardo Cerqueira | PGP Key fingerprint - B7 05 13 CE 48 0A BF 1E 87 21 83 DB 28 DE 03 42 | Novis Telecom - Engenharia ISP / Rede Técnica | Pç. Duque Saldanha, 1, 7º E / 1050-094 Lisboa / Portugal | Tel: +351 2 1010 - Fax: +351 2 1010 4459 PGP signature
Re: Mail server madness (with regards to domain names)
CNAMEs are a bad thing for email. Check the discussion in THOUGHTS. Change your DNS so that scode is an A rather than a CNAME and the remote MTAs won't bother doing the re-writing. Regards. On Wed, Jan 17, 2001 at 03:47:34PM -0500, Peter Schuller wrote: > Hello, > > lately, outside (non-local) SMTP servers have begun to go crazy. For > example, I have a standard entry in my qmail virtualdomains file for all > mail to [EMAIL PROTECTED] - it goes to the user scode. > > But if I attempt to send an E-Mail from an outside source (a few have been > tried) to, say, [EMAIL PROTECTED], the SMTP server making the final > delivery suddently goes mad and does an RCTP [EMAIL PROTECTED]! > > What might cause this? I even changed "scode" back from being a CNAME to > being an A record in the DNS configuration, in case that was the cause. > > Note, my main address "[EMAIL PROTECTED]" works fine. > mail.infidyne.com is the MX for the domain. > > Any suggestions would be appreciated. The strange part is that we didn't have > this problem earlier. > > Thank you, > > -- > / Peter Schuller, InfiDyne Technologies HB > > PGP userID: 0x5584BD98 or 'Peter Schuller <[EMAIL PROTECTED]>' > Key retrival: Send an E-Mail to [EMAIL PROTECTED] > E-Mail: [EMAIL PROTECTED] Web: http://scode.infidyne.com >
Re: Mail server madness (with regards to domain names)
* Mark Delany <[EMAIL PROTECTED]> [010117 21:59]: > CNAMEs are a bad thing for email. Check the discussion in THOUGHTS. > Change your DNS so that scode is an A rather than a CNAME and the > remote MTAs won't bother doing the re-writing. ...and don't test it again until the CNAME is gone (it's time to live expired) as tests from remote machines will find the CNAMES for another while after you update your DNS. -Johan -- Johan Almqvist http://www.almqvist.net/johan/qmail/ PGP signature