Want to protect your cyber security and still get fast solutions? Ask a secure question today.Go Premium


SendMail problem after the latest upgrade

Posted on 2003-03-04
Medium Priority
Last Modified: 2010-03-18
My server is running RedHat Linux 8. Today I installed sendmail update as it is available from redhat up2date agent. After the installation, I could not send any mail outside. I can receive incoming mail. I found this in the maillog entry:
relay=[], dsn=4.0.0, stat=Deferred: Connection refused by []

Before the update my ip address is displayed instead of After the update for some reason it is showing up as and so mail is not going out. I thoroughly checked nameserver configuration and network configurations. Everything looks fine. I still don't understand why it is trying to relay thru after the update.

Appreciate any help.

Thanks !
Question by:cuddapah

Expert Comment

ID: 8072335

Try posting your sendmail.mc so we can see what are the options you're using in sendmail.cf.

Also, that entry shows up in your mail server or in your workstation ?.

Try doing netstat -an | grep LISTEN | grep 25
and see if you get something like:

tcp        0      0*   LISTEN  

You're probably being able to receive mails because sendmail is listening in the eth connected to Internet, but it's not listening to requests on localhost.

Author Comment

ID: 8073642
I thought this might be a bug and sent a mail to sendmail.org. They responded saying that this is not a bug and that I should modify submit.cf. I did and it works again !

Expert Comment

ID: 9077738
This old question needs to be finalized -- accept an answer, split points, or get a refund.  For information on your options, please click here-> http:/help/closing.jsp#1 
Post your closing recommendations!  No comment means you don't care.

Accepted Solution

modulo earned 0 total points
ID: 13223842
PAQed with points refunded (110)

Community Support Moderator

Featured Post

Concerto's Cloud Advisory Services

Want to avoid the missteps to gaining all the benefits of the cloud? Learn more about the different assessment options from our Cloud Advisory team.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I have seen several blogs and forum entries elsewhere state that because NTFS volumes do not support linux ownership or permissions, they cannot be used for anonymous ftp upload through the vsftpd program.   IT can be done and here's how to get i…
Note: for this to work properly you need to use a Cross-Over network cable. 1. Connect both servers S1 and S2 on the second network slots respectively. Note that you can use the 1st slots but usually these would be occupied by the Service Provide…
this video summaries big data hadoop online training demo (http://onlineitguru.com/big-data-hadoop-online-training-placement.html) , and covers basics in big data hadoop .
If you're a developer or IT admin, you’re probably tasked with managing multiple websites, servers, applications, and levels of security on a daily basis. While this can be extremely time consuming, it can also be frustrating when systems aren't wor…
Suggested Courses

571 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question