MX Records Change

Robert L. Cochran Jr. cochranb at clark.net
Mon Jan 8 05:17:17 UTC 2001


So, the machine named media.metzgers.com. must have misconfigured DNS
parameters. Look at the 220 response from sendmail:  

> Connected to media.metzgers.com.
> Escape character is '^]'.
> 220 corp.metzgers.com ESMTP Sendmail 8.8.8/8.8.8; Sun, 7 Jan 2001 23:43:02 -0500



-- 
Have a nice day!
Bob Cochran
mailto:cochranb at lingpgmr.com or mailto:cochranb at clark.net



Andrew Tsen wrote:
> 
> On 7 Jan 2001 18:25:51 -0800, Eric Leslie posted:
> 
> [snip]
> 
> >Since I wasn't able to change the connection settings right away, I figured
> >that I would leave both IPs active in the MX record. My thinking was that
> >once the old connection was unavailable (media.metzgers.com), I thought that
> >it would go to the new connection and static IP (corp.metzgers.com). Anyway,
> >I have gotten the new connection set up, but no outside mail comes in. Once
> >I go back to the old connection, the outside mail comes in. Was my thinking
> >of the MX settings wrong? Or what should my MX record reflect to work in
> >this manner, if possible? Obviously, once I am comfortable with the new ISDN
> >connection, I will have the old IP reference removed from the MX record.
> 
> first of all....
> 
> metzgers.com    preference = 0, mail exchanger = corp.metzgers.com
> metzgers.com    preference = 10, mail exchanger = media.metzgers.com
> metzgers.com    nameserver = ns1.dynamicweb.net
> metzgers.com    nameserver = ns2.dynamicweb.net
> corp.metzgers.com       internet address = 208.10.17.62
> media.metzgers.com      internet address = 206.165.56.209
> ns1.dynamicweb.net      internet address = 205.178.159.134
> ns2.dynamicweb.net      internet address = 205.178.138.137
> > exit
> 
> corp.metzgers.com will be the first primary mail server that mail will get
> delivered to.  If corp.metzgers.com fails, then it will go to your second
> mx server, which is media.metzgers.com.  media will hold it in it's queue until
> your primary mx server is responsive, and will attempt to deliver it.  else, it
> will keep trying to send the mails to primary every 10 minutes.
> 
> another thing, corp.metzgers.com isn't even responding when i tried to telnet
> to port 25 on it.  see below.  hope this helps out a little.  else, email me,
> and i will help you out further...
> 
> (1606)11:38:54pm [drew at access ~]%t corp.metzgers.com 25
> Trying 208.10.17.62 ...
> telnet: connect: Connection timed out
> telnet> quit
> (1607)11:41:25pm [drew at access ~]%t media.metzgers.com 25
> Trying 206.165.56.209 ...
> Connected to media.metzgers.com.
> Escape character is '^]'.
> 220 corp.metzgers.com ESMTP Sendmail 8.8.8/8.8.8; Sun, 7 Jan 2001 23:43:02 -0500



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