[clue-tech] weird dns problem

[Charles Oriez]

At 06:23 PM 1/12/2005, you wrote:


>>Probably grassroots and rmc are configured slightly differently.  One 
>>mangles the From header (or the Return-Path header causing subsequent 
>>mangling of the From header, perhaps) and the other doesn't.
>>
>>DNS may still have a role in this.  Maybe the sendmails behave 
>>differently because one is on rmc and the other isn't on ohio, or because 
>>of the MXs for the various machines.
>>
>>Seems odd though to suspect DNS for wierd mail headers.
>
>
>Is the mail server grassroots doing any kind of domain masquerading? Check 
>the sendmail.mc file and look for
>MASQUERADE_AS(`grassroots.sierraclub.org') or the sendmail.cf file for 
>DMgrassroots.sierraclub.org

#MASQUERADE_AS(`grassroots.sierraclub.org')        <==== commented out
MASQUERADE_DOMAIN_FILE('/etc/mail/local-host-names')dnl
dnl MASQUERADE_DOMAIN(localhost)dnl
dnl MASQUERADE_DOMAIN(localhost.localdomain)dnl
dnl MASQUERADE_DOMAIN(mydomainalias.com)dnl
dnl MASQUERADE_DOMAIN(mydomain.lan)dnl


then local-host-names contains the following data for every domain

#local-host-names - include all aliases here
(blank line here)
grassroots.sierraclub.org
illinois.sierraclub.org
missouri.sierraclub.org
ohio.sierraclub.org

. . .

(about 60 subdomains)

on the separate rmc server, we have
MASQUERADE_AS(`rmc.sierraclub.org')
and then don't have the local hosts stuff because there are no aliases there

tia


-- 
coriez at oriez.org 39  34' 34.4"N / 105 00' 06.3"W       AIM handle caoriez
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