Re: [cobalt-security] 554 5.0.0 MX list for niccicam.com. points back to cob184.netlimited.net

["Chris Maxwell, WDSL Inc." <betateam@xxxxxxxxxxxx>]

Hello Nic,

This sounds like a DNS issue.
Sendmail doesn't like to have the mail serviced by the physical name.
Both versions accomplish the same thing, but using the CNAME record is
technically correct.  In many cases sendmail will happily work with
the first version - but not always.

Bad:
abc.com.  in A    1.2.3.4
abc.com.  in MX   abc.com.

Good:
abc.com.       in A      1.2.3.4
mail.abc.com.  in CNAME  abc.com.
abc.com.       in MX     mail.abc.com.



Best regards,
Chris Maxwell
cmaxwell@xxxxxxxxxxxx

Tuesday, December 12, 2000, 3:22:32 PM, you wrote:

NL> I've having a problem with mail on my RaQ4i and have found *NO* information
NL> on the Cobalt KnowledgeBase. :( Basically I'm getting the following messages
NL> bounced back for anything and everything:

NL> The original message was received at Tue, 12 Dec 2000 07:42:21 -0800
NL> from niccicamcom@localhost

NL>    ----- The following addresses had permanent fatal errors -----
NL> majordomo@xxxxxxxxxxxx

NL>    ----- Transcript of session follows -----
NL> 554 5.0.0 MX list for niccicam.com. points back to cob184.netlimited.net
NL> 554 5.3.5 majordomo@xxxxxxxxxxxxxxx Local configuration error

NL> I did find the suggestion below,... but I do not seem to have the
NL> /usr/lib/sendmail-cf/redhat.mc file on my machine.

NL> I have however found /usr/lib/sendmail-cf/cf/cobalt.mc which is the closest
NL> guess I can find. Does anybody know if this fix should still work on my RaQ
NL> 4i and if this is the relevent file to edit? Any help would be greatly
NL> appreciated.

NL> Thanks in advance
NL> Nic


>> I had this same problem on my Raq3(I have no idea if it is the same for a
>> Raq/2/4) and tried so many things, but I finally found what the roblem was
>> thanks to one of the people who actually writes sendmail and was nice
NL> enough
>> to help me out.  Set up your DNS like it says in the Raq manual.
>>
>> Here is hwat you do
>>
>> - change directories to: /usr/lib/sendmail-cf
>> - use pico to edit 'redhat.mc'  (command line type "pico redhat.mc")  make
NL> a
>> backup copy first, though
>> - there are probably several instances of "divert(0)" in the file, comment
>> them ALL out, to comment them out, you just place # sign in front of each
>> one
>> - at the top of the file, add in a new line, "divert(-1)".  If there are
>> already some "divert(-1)" somewhere else in the file, comment them out
NL> with
>> a # also, you only want the one at the top of the file.
>> - save the file (hit ctrl-X and follow prompts)
>> - reboot the Raq and it should work just fine
>>
>> Jon

NL> _______________________________________________
NL> cobalt-security mailing list
NL> cobalt-security@xxxxxxxxxxxxxxx
NL> http://list.cobalt.com/mailman/listinfo/cobalt-security


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