Question

dsn=5.0.0, stat=Service unavailable

Asked by: dummy123

I have a mailing list at lists.mydomain.com and wanted to subscribe to it with an
email of anything@mydomain.com but the confirmation message didn't reach me. I
checked the log files of lists.mydomain.com server and can see

Jan  1 02:10:20 server sendmail[4248]: k0s41sbbp04546: to=<anything@mydomain.com>,
delay=00:00:00, xdelay=00:00:00,mailer=esmtp, pri=229720,
relay=control.mynet.net. [63.175.195.228], dsn=5.0.0, stat=Service
unavailable

where
;; ANSWER SECTION:
mydomain.com.               1165    IN      MX      10 control.mynet.net.


I can subscribe using other emails so I guessed the problem is only with emails @mydomain.com and I checked and found that those emails @mydomain.com works. I was confused where the problem lies!

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Asked On
2006-01-04 at 04:05:25ID21683322
Tags

unavailable

,

sendmail

Topic

SendMail Email Server

Participating Experts
2
Points
500
Comments
3

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Answers

 

by: anfiPosted on 2006-01-04 at 04:27:10ID: 15607003

1) Could you publish email "bounce" message you have received?
[ It usually contains more hints ]

2) You can send a test message to anything@mydomain.com with SMTP session tracking

As root (sendmail-8.12+) execute:
( echo subject: test; echo ) | sendmail -v -oi anything@mydomain.com

 

by: kenfcampPosted on 2006-01-05 at 10:50:09ID: 15621451

[relay=control.mynet.net. [63.175.195.228], dsn=5.0.0, stat=Service
unavailable]

Assuming you're running linux:

Is "mynet.net" listed in your /etc/mail/local-host-names file?

 

by: dummy123Posted on 2006-01-07 at 12:52:27ID: 15638677

I contacted the people of control.mynet.net and the problem turned out to be a DNS configuration on their server. They correct it and now everything is ok.

However, anfi note about checking the bounce is very good though I couldn't check after fixing the problem since the mails has gone.

kenfcamp, control.mynet.net is not relaying to me. It's me who is using it as a relay and hence adding it to local-host-names is not correct.

anfi, I want to give you the points because of that piece of info if you showed me how to deal with messages in the bounce report for example, if it says:

MDeferred: 461 Too many unknown users from your host. Possibly an open relay. Address added to blacklist. If you think this is not correct please contact blocked@gawab.biz and don't forget to include your network address
 and time of seeing this message (#4.3.1)

Does this mean I have something wrong in my configuration? My site is running a mailing list so it's normal that it sends many messages. I have the ptr set properly. how can I check?

20120131-EE-VQP-002

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