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тАО08-23-2004 03:37 PM
тАО08-23-2004 03:37 PM
sendmail relay server problem
1) In sendmail, the relay server is defined as
"DSchaoam03.com"
2) The output of "nslookup chaoam03.com" is
Name: chaoam03.com
Address: 10.20.2.31
3) when I try to run command "/usr/sbin/sendmail -v a@tca.com" I got the error "tca name server timeout". It seems the "tca" can not be resolved.
I can telnet to chaoam03.com on port 25 only. cannot ping. Does the connection to relay server must be fully reachable to do name resolution?
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тАО08-23-2004 05:58 PM
тАО08-23-2004 05:58 PM
Re: sendmail relay server problem
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тАО08-23-2004 06:00 PM
тАО08-23-2004 06:00 PM
Re: sendmail relay server problem
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тАО08-23-2004 06:12 PM
тАО08-23-2004 06:12 PM
Re: sendmail relay server problem
hosts: files [NOTFOUND=continue] dns
in /etc/hosts,
192.168.9.120 abc xxx.com
10.20.2.31 chaoam03.com
no definition of tca.com.
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тАО08-23-2004 06:17 PM
тАО08-23-2004 06:17 PM
Re: sendmail relay server problem
You will have to do some modifications in the sendmail.cf file to tell sendmail not to use DNS.
else you will have to use a DNS server for the lookups.
There is a good doc on the itrc ,check that out
http://www1.itrc.hp.com/service/cki/docDisplay.do?docLocale=en_US&docId=200000065255439
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тАО08-23-2004 07:11 PM
тАО08-23-2004 07:11 PM
Re: sendmail relay server problem
#echo "Hi" | /usr/sbin/sendmail -v xxx@tac.com
xxx@tac.com... Connecting to chaoam03.com via relay...
220 chaoam03.comMicrosoft ESMTP MAIL Service, Version: 5.0.2195.5329 ready at Tue, 24 Aug 2004 14:04:21 +0700
>>> EHLO smsdtac.
501 5.5.4 Invalid Address
>>> HELO smsdtac.
501 5.5.4 Invalid Address
What doesn the error above mean?
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тАО08-24-2004 07:36 PM
тАО08-24-2004 07:36 PM
Re: sendmail relay server problem
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тАО08-25-2004 12:32 AM
тАО08-25-2004 12:32 AM
Re: sendmail relay server problem
telnet
HELO
MAIL FROM:root@chaom03.com
RCPT TO:root@tac(tca).com
DATA
This is a test
.
Quit
You'll know right away if you can talk to the system your attempting to reach and if it will relay mail.
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тАО08-25-2004 12:35 AM
тАО08-25-2004 12:35 AM
Re: sendmail relay server problem
Try taking DNS out of the picture.
1. Rename /etc/resolv.conf
2. Your hosts line in /etc/nsswitch.conf should read
hosts: files
Place your relay in /etc/hosts file and make sure you can resolve it.
Test sendmail again.
Berlene
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тАО10-07-2004 02:02 AM
тАО10-07-2004 02:02 AM
Re: sendmail relay server problem
Try the next trick. In your /etc/hosts file add the folloging line:
10.20.2.31 tca.com
The same procedure must be done for any external requested domain.
Rgds.