Expiring Today—Celebrate National IT Professionals Day with 3 months of free Premium Membership. Use Code ITDAY17


Telnet and mail client (outlook Express)

Posted on 2006-07-13
Medium Priority
Last Modified: 2008-02-01
Dear Gurus,
Iam facing typical problem with my sendmail.We are using sendmail ver2.8 on our Solaris 8
we are able to send and receive mails sucessfully from within our domain where as external domain as well. Thus ,We donot have any problems in sending and receiving mails

We are having a paging system.which sends paging messages to the users who carry pagers .we haveinstalled pager softere which was developed on C and installed under user pager
   wheneveri want to send a paging info to any person..i logon  to my user through telnet and using command line 'mailx pager' and in the 'subject line i  will give concerened user pagernumber and we type message in the next line and send .
 Absolutely we are not facing the problem

But the problem is  that whenever we try to send a message to pager through mailclient like  outlookexpress we are not able to send paging message sto the concerened users and we are getting error  message as follows:

However for normal users we are able to send and recieve messages through mailclients(outlook express) without any problem
The following addresses had permanent fatal errors -----
    (reason: 139)
    (expanded from: <pager@aut.tatasteel.com>)

   ----- Transcript of session follows -----
Segmentation Fault - core dumped
554 5.3.0 unknown mailer error 139

               **** P.S: /net_dsk/admin/pager is the homedirectory of the user 'pager'******
Question by:srini123
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
LVL 12

Expert Comment

ID: 17099462
Segmentation Fault - Core Dumped indicates the software on the mail server is attempting to address memory outside the current segment.

It is likely that Outlook Express is adding something to the mail format that is not expected by your pager processor.  Try sending it in "plain text" without any formatting.  You need to compare the actual formatting of the messages from each of the mail clients.  (Try using Thunderbird or Outlook 2003, also).

A possiblity is that data is being looked up in a table on the mail server.  Do messages sent to recipients starting with say A-F work but recipients from G-Z fail?  That would indicate an attempt to lookup data past the end of a table.  These would be issues to workout with your unix admin and mail server support team.

Author Comment

ID: 17105588
Dear alandc,
Thnaks for your commenst..
It is working perfectly alright when we are sending in plain text..
However We want to send those messages  through mail client (say outlook express or Eudora etc) .We are facing this problem while sending thorough these mail clients..
We will get the error immediately as shown in my earlier mail above  once i send message throughmy mailclient.



Accepted Solution

windows_eXPert earned 2000 total points
ID: 17108248
I think he means that you need to change the HTML option to Plaintext. Pagers probably can't parse HTML anyways.
Open OE, go to Tools > Options > Send and choose Plain text under "Mail sending format".

Let me get this straight. You have mailboxes, and one for pagers. On receipt of a message by "pager" user, a program is run that sends a page to somebody based on the subject. Under telnet the program works fine, but thru OE it crashes.

What crashes? Sendmail or your program? If sendmail crashes, it seems as if it (sendmail) has issues talking to your pager software. If your pager crashes, it has trouble parsing the message (or similar).

When you type mailx pager, are you connecting to sendmail and sending through that to pager prog, or are you running/talking to your pager program directly?

Featured Post

Free Tool: Site Down Detector

Helpful to verify reports of your own downtime, or to double check a downed website you are trying to access.

One of a set of tools we are providing to everyone as a way of saying thank you for being a part of the community.

Question has a verified solution.

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

Introduction How to create multiboot configuration with XP\Vista and Windows 7 on it? And most important question - how to do this correctly so not to have any kind of nightmares we get when system gets screwed? First of all one should realize t…
Sometimes a user will call me frantically, explaining that something has gone wrong and they have tried everything (read - they have messed it up more and now need someone to clean up) and it still does no good, can I help them?!  Usually the standa…
This is used to tweak the memory usage for your computer, it is used for servers more so than workstations but just be careful editing registry settings as it may cause irreversible results. I hold no responsibility for anything you do to the regist…
Hi friends,  in this video  I'll show you how new windows 10 user can learn the using of windows 10. Thank you.

718 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