Advertisement

04.07.2008 at 08:59AM PDT, ID: 23301778
[x]
Attachment Details
[x]
The Solution Rating System

With so many solutions, how can you tell which solutions are most likely to help you and which ones are not? To provide you with a tool to use, we rate our solutions based on various elements that most accurately determine if a solution is a quality solution. To explain what factors affect the solution rating, here are the elements we take into consideration when formulating our solution rating.

  • The Grade of the Solution
  • The Zone Rank of the Expert Providing the Solution
  • The Number of Author and Expert Comments
  • The Number of Experts Contributing
  • The Feedback of the Community

Your Input Matters
Because of the way the system is set up, the most important variable in this equation is you. As a member of Experts Exchange, you are able to cast your vote on the quality of the solutions in regard to how complete, accurate, helpful and easy to understand each solution is. When you provide your feedback, each rating is adjusted accordingly. So, if you see a solution that has a poor rating that you think is a good solution, let us know by rating it. As you do, the rating will be adjusted and will become more accurate for other members of our site.

If you have any suggestions that you would like to make for our rating system, please ask a question in the Suggestions Zone of Community Support.

Thank you!
9.4

sendmail DSN: Service Unavailable

Asked by techneitsolutions in Linux Setup, Debian Linux, Ubuntu

Tags: , , ,

We have for one of our clients a mail relay server based upon sendmail, running on a ubuntu machine.

From the logs (tail -50 /var/log/mail.log) we get:
Apr  7 17:19:04 HBDS1043 sm-mta[2577]: m37FJ3Zc002577: to=from.user.accounttodomain.com, delay=00:00:01, xdelay=00:00:01, mailer=esmtp, pri=30000, relay=mail.todomain.com. [xx.xx.xx.xx], dsn=2.0.0, stat=Sent ( <200804071519.m37FJ3Zc002577@sendmail.domain.local> Queued mail for delivery)
Apr  7 17:41:27 HBDS1043 sm-mta[3969]: starting daemon (8.13.5.20060308): SMTP+queueing@00:10:00
Apr  7 17:42:19 HBDS1043 sm-mta[4150]: starting daemon (8.13.5.20060308): SMTP+queueing@00:10:00
Apr  7 17:43:26 HBDS1043 sm-mta[4166]: m37FgrES004166: from=from.user.accounttodomain.com, size=10, class=0, nrcpts=1, msgid=<200804071543.m37FgrES004166@sendmail.domain.local>, proto=ESMTP, daemon=MTA-v4, relay=sendmail.domain.local [192.168.161.139]
Apr  7 17:43:32 HBDS1043 sm-mta[4168]: m37FgrES004166: to=to.user.account@todomain.com, delay=00:00:13, xdelay=00:00:06, mailer=esmtp, pri=120010, relay=mail.todomain.com. [xx.xx.xx.xx], dsn=5.0.0, stat=Service unavailable
Apr  7 17:43:32 HBDS1043 sm-mta[4168]: m37FgrES004166: m37FhWES004168: DSN: Service unavailable
Apr  7 17:43:32 HBDS1043 sm-mta[4168]: m37FhWES004168: to=from.user.accounttodomain.com, delay=00:00:00, xdelay=00:00:00, mailer=esmtp, pri=30000, relay=mail.todomain.com. [xx.xx.xx.xx], dsn=2.0.0, stat=Sent ( <200804071543.m37FhWES004168@sendmail.domain.local> Queued mail for delivery)

With a highlite to:
dsn=5.0.0, stat=Service unavailable

Also if i try to do "telnet localhost 25" we get:
Trying 127.0.0.1...
telnet: Unable to connect to remote host: Connection refused


A quick search on google http://www.adamsdesk.com/be/archives/2005/09/09/sendmail-dsn-service-unavailable/ gives me the error is probably located in the hosts or hosts.allow file in the etc folder. But it seems to me those are setup correctly.

Can this be related to another issue?
Start Free Trial
[+][-]04.07.2008 at 12:47PM PDT, ID: 21299963

View this solution now by starting your 7-day free trial. Setting up your free trial is quick, easy, and secure. We will return you to this solution, unlocked, when you're done.

 

About this solution

Zones: Linux Setup, Debian Linux, Ubuntu
Tags: Linux, Debian/Ubuntu, sendmail, sendmail
Sign Up Now!
Solution Provided By: omarfarid
Participating Experts: 1
Solution Grade: B
 
 
 
Loading Advertisement...
20080716-EE-VQP-32 / EE_QW_2_20070628