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sendmail: Introduction and Configuration

Nov 29, 2001  By Eric Jorn Seneca
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A guide for those of you configuring your first e-mail server.
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Hey, Thanks for such a lovely

Anonymous's picture
Submitted by Anonymous (not verified) on Mon, 10/18/2010 - 02:56.

Hey,

Thanks for such a lovely doc however when I am doing the ifconfig it is not giving the host IP Address for SMTP Server and it is giving below IP 39.96.8.8. and I think that is the reason it is not giving the port 25 to listen to our IP, instaed it is shwoing 127.0.0.1(Local Host).

Please let me know what should be done from my side.

Thanks,

Thanks

Anonymous's picture
Submitted by Anonymous on Wed, 04/14/2010 - 07:43.

Many thanks, i was struggling to configure sicne long time but after following your post i configure it successfully

thanks a lot

sending mail

Anonymous's picture
Submitted by Anonymous on Thu, 03/11/2010 - 09:04.

am developing an application on mailserver in php and mysql..
can i use roundcube for my application.. how to use it.

Very good document. Thanks

Suman Kumar Mandal's picture
Submitted by Suman Kumar Mandal (not verified) on Thu, 02/04/2010 - 00:51.

Very good document. Thanks Eric

dsn=2.0.0, stat=Sent

Anonymous's picture
Submitted by Anonymous (not verified) on Thu, 10/29/2009 - 01:02.

dsn=2.0.0, stat=Sent (n9T5vBsn013704 Message accepted for delivery

Thanks a lot Eric. This

Hoan's picture
Submitted by Hoan (not verified) on Sun, 10/11/2009 - 22:21.

Thanks a lot Eric. This article is great.
Your explanation is very easy to follow.

Need Help- How to Configure Send mail in Linux Enterprise Editio

Dibakar Sahoo's picture
Submitted by Dibakar Sahoo (not verified) on Wed, 04/15/2009 - 13:01.

Hi
need help how to configure send mail in linux enterprise edition 4.0.

this server is loaded with
Linux ENterprise edition 4.0
IBM Websphere and Oracale

can i configure send mail in this environment.

please help

fantastic, just fantastic

Linn's picture
Submitted by Linn (not verified) on Fri, 12/05/2008 - 10:02.

this is fantastic post.. thanks very much..for sharing

Thanks Eric

echikoz's picture
Submitted by echikoz (not verified) on Wed, 04/11/2007 - 05:34.

Hi Eric,
It is good to know that someone who shares my name can be this helpful.Am now able to telnet on 110 of my server.
Cheers,
Erick.

adding comments

venkat raman's picture
Submitted by venkat raman (not verified) on Sat, 02/24/2007 - 11:39.

i think this is very very useful for me in clarifying various doubts.
but i wants deep in case of sendmail problenm regarding defered DNS I.E. dsn=4.0.0 , state=defered, connection refused by xxx.xxx.com etc
but very useful hint from /etc/mail/local-host-names

I am not really like to

Alex2's picture
Submitted by Alex2 (not verified) on Sun, 09/24/2006 - 11:32.

I am not really like to leave comments. But this is really a very handy paper. I set up sendmail very quickly after reading it.

Thanks So Much

Adam Doupe's picture
Submitted by Adam Doupe (not verified) on Wed, 08/30/2006 - 15:07.

Hey, I really appreciate this article, it helped me set up sendmail quickly. Thanks for the good article.

Problem with spams

parikshit's picture
Submitted by parikshit (not verified) on Fri, 08/18/2006 - 05:42.

Hi,
I am developing an application in jsp. we are using java mail api to send email through our application.

The problem with us is that our mais are landing in spam folders in a few public domain email providers.

One of the spam lists says that our mail server is not correctly configured and thats why our mails are landing in spam folder.
here is the link:
http://cbl.abuseat.org/remove.cgi?ip=66.232.112.182

thanks in advance.

creating user accounts after configuring sendmail

Den's picture
Submitted by Den (not verified) on Tue, 05/23/2006 - 08:24.

Hi,
I do appreciate for your nice material on configuring sendmail.I have successfully managed to follow it the end but question is how do i create email accounts for users in my email server

Excellent job

Anonymous's picture
Submitted by Anonymous (not verified) on Thu, 04/20/2006 - 03:11.

Excellent job ...............Thanks a lot

thanks Eric!

Vitu's picture
Submitted by Vitu (not verified) on Thu, 01/05/2006 - 09:39.

Thanks Eric, this article is great.

Please explain some more

Sreedhar.T.P's picture
Submitted by Sreedhar.T.P (not verified) on Sun, 03/19/2006 - 04:19.

I saw ur article and found it intersting. Iam new to Linux and i have a handful of doubts. Will u please explain me...

By configuring sendmail can i add unlimited users

Where will be the email data stored

Will this configuration work in Red Hat Enterprise Linux AS4

Can i configure it it GUI mode.

Is it easy to administer

Expecting a detailed reply

Thanking you

Sreedhar

hello

Larry's picture
Submitted by Larry (not verified) on Fri, 11/09/2007 - 00:06.

I found it very useful.

sendmail config

JaR's picture
Submitted by JaR (not verified) on Tue, 09/06/2005 - 02:32.

need some help
i have a smtp working with pop3 runing
my problem is some ips use my server for spam
how i can stop that?
tcp 0 0 nicolaescumalex.pi:smtp 221.221.234.210:2865 ESTABLISHED
tcp 0 0 nicolaescumalex.pi:smtp 221.221.234.227:2658 ESTABLISHED
tcp 0 0 nicolaescumalex.pi:smtp 221.221.255.137:bmap ESTABLISHED
tcp 0 0 nicolaescumalex.pi:smtp 221.221.255.94:2725 ESTABLISHED
tcp 0 0 nicolaescumalex.pi:smtp 221.221.255.94:4754 ESTABLISHED
tcp 0 0 nicolaescumalex.pi:smtp 221.221.232.215:2402 ESTABLISHED
tcp 0 0 nicolaescumalex.pi:smtp 221.221.255.137:4755 ESTABLISHED

this are the conection to my smtp

they are using big list of email address and have wrong addres in the list
i receive mails like this
From: Mail Delivery Subsystem
Subject: Postmaster notify: see transcript for details
This is a MIME-encapsulated message

--j867TerR011920.1125991785/nicolaescumalex.piatraneamt.rdsnet.ro

The original message was received at Tue, 6 Sep 2005 07:29:40 GMT

my question is
how they can access my smtp and how i can blok it??
thx

prevent spammers from using my sendmail

Anonymous's picture
Submitted by Anonymous (not verified) on Thu, 02/16/2006 - 11:53.

Has anyone responded to this posting?

Hi, Is it possible to read m

jibu's picture
Submitted by jibu (not verified) on Fri, 09/02/2005 - 06:20.

Hi,
Is it possible to read messages directly from sendmail using java without using pop3?
Thanks
Jibu

Re: Sendmail Configuration.

Abbass's picture
Submitted by Abbass (not verified) on Fri, 08/12/2005 - 05:32.

This article is really great.

Can't recieve mail externaly or localy

CharlesB's picture
Submitted by CharlesB (not verified) on Sun, 11/06/2005 - 17:57.

I am relitivly new to linux "mandrake 10.0" I have read your step by step on setting up sendmail..... "Perfect simple absolutly the best I have read". I can send emails externaly and localy but for the life of me I can not recieve mails sent to the mail server here. I have tryed everything I could think of and have read "including your step by step". Nothing seems to be working at all for me :(

Relaying help needed

Andre's picture
Submitted by Andre (not verified) on Fri, 11/26/2004 - 06:56.

I have a fully working sendmail set up going, I can send mail using a web client (Squirrelmail) and receive mail fine using a POP3 server and IMAP. I cannot send mail from home using a client like Outlook, I get "RELAY DENIED" error, but I can download my mail from the server.

I've tried auth settings on the client side, but nothing seems to work when I send mail to a domain not listed in my relay-domains list. Obviously I can't add all domains or *.com etc, as that will open the relay. Any ideas/comments/suggestions?!

I need to get this working, without using the ISP's SMTP server for sending, I've got a client that wants to use this server in house...

Re: Relaying Help needed

Rohit's picture
Submitted by Rohit (not verified) on Fri, 03/24/2006 - 10:36.

Hi,

I am also facing the same problem as you, If you have found some solutions for the same, then pls share with me..

Thanks

It feels good to see smtp working....

Chris Jackson's picture
Submitted by Chris Jackson (not verified) on Wed, 11/24/2004 - 23:19.

I have tried and tried to get sendmail working - awesome article. Thanks...

problem in accessinig access file

mks's picture
Submitted by mks (not verified) on Tue, 11/16/2004 - 00:52.

Hi,

I have read the following line in ur article for configuring sendmail.

This can be done by adding the following line to the /etc/mail/access file and running the command make access.db after saving that file.

blank.com RELAY

But when i tried to access /etc/mail/access file, it is asking for encryption key. What should i do now?

Re: sendmail: Introduction and Configuration

Anonymous's picture
Submitted by Anonymous on Sun, 06/20/2004 - 02:00.

Erick,

YOU ARE THE CHAMPION MY FRIEND.

Miguel
Miami, FL
mfvh@yahoo.com

Re: sendmail: Introduction and Configuration

Anonymous's picture
Submitted by Anonymous on Tue, 04/20/2004 - 02:00.

Very good article because it's simple and complete. It worked fine. The only thing would be to explain thant this pop3 works on port 995

Re: sendmail: Introduction and Configuration

Anonymous's picture
Submitted by Anonymous on Mon, 11/17/2003 - 03:00.

Good Job Eric. Good combination of stuff put together. Good for new linux net admins.
Thanks on every ones behalf

Re: sendmail: Anonymous Email Configuration

Anonymous's picture
Submitted by Anonymous on Tue, 08/26/2003 - 02:00.

Hi ,

I have configured a email mail server , it is working fine .

Now the problem is , I want my email server to accept anonymous emails i.e , if some one responds with anon123@xyz.com (ex my domain is xyz.com) and i don't have such user still i want his mail to land in my email server how do i do it ...........

What configuration should i set in my sendmail.cf file

Sendmail gurus pls help me

Re: sendmail: Anonymous Email Configuration

Anonymous's picture
Submitted by Anonymous on Wed, 08/27/2003 - 02:00.

hi dear,

You don't have to do anything.

Just creat a catchall account in your mail server.

Thanks

Re: sendmail: Anonymous Email Configuration

Anonymous's picture
Submitted by Anonymous on Mon, 09/08/2003 - 02:00.

How do I create a catch all in the mail server

please tell me how to create

Anonymous's picture
Submitted by Anonymous (not verified) on Tue, 10/04/2005 - 03:19.

please tell me how to create a catch all account in mail server using sendmail.How to create auto responders vacations mail too

Re: sendmail: Introduction and Configuration

Anonymous's picture
Submitted by Anonymous on Fri, 04/25/2003 - 02:00.

hai

i used ur instructions to configure sendmail it worked very fine .

the problem is in virtual domains

when i send mail to the

user@virtdomain.com

it gets aliased to user@mydomain.com

but the reply address for that user will come as user@mydomain.com

plz help me out.

my mail id is

shivakumarnm@yahoo.com

Re: sendmail: Introduction and Configuration

Anonymous's picture
Submitted by Anonymous on Thu, 05/15/2003 - 02:00.

My Name Is Zafrulla Khan

I dont Know ...sendmail Conf i was struggling for a long time to configure the sendmail ......Luckly by the god Grace i found your link for the Google Search Engine .....

I can not say in words how i was benifited from this conf
I will be always thank full to you in my life

Any futher conf about this plz put on the web .....plz

zafaronline@rediffmail.com

Re: sendmail: Introduction and Configuration

Anonymous's picture
Submitted by Anonymous on Fri, 12/06/2002 - 03:00.

Thanks for the help here. I was confused , how come pop3 is not workyby default in linux8.0, once i gone thru the help and set disabled=no in /etc/xinetd , starts working fine. THanks alot.

By the way, i have enabled imapd also in the same fashion, that means my mechine will work as an IMAP server too, is't it??

Re: sendmail: Introduction and Configuration

Anonymous's picture
Submitted by Anonymous on Mon, 03/10/2003 - 03:00.

Thanks for a great help on sendmail only listen on port 25 on loopback. Keep it up.

Re: sendmail: Introduction and Configuration - BRILL!

Anonymous's picture
Submitted by Anonymous on Fri, 10/25/2002 - 02:00.

Absolutely BRILLIANT!!!!!

At last sendmail works, no other tutorial managed that for me!

THANK YOU!

Relay denied

Anonymous's picture
Submitted by Anonymous on Tue, 09/03/2002 - 02:00.

Incredible article! Thanks Eric.....

I

Re: Relay denied

Anonymous's picture
Submitted by Anonymous on Thu, 01/23/2003 - 03:00.

hi i have the same problem... and i'dont know haw to resolve this, can you help me too...

thanks

please send me an e-mail to

vasile_turcu@yahoo.com

Re: Relay denied

Anonymous's picture
Submitted by Anonymous on Fri, 01/24/2003 - 03:00.

Same problem here :(

Altough i can send email inside my network without problems, if i try to send an email i.e. hotmail i get an relay denied error

help please!

Re: sendmail: Introduction and Configuration

Anonymous's picture
Submitted by Anonymous on Tue, 08/27/2002 - 02:00.

Incredible article! Thanks Eric, this piece of text just broke the ice for me regarding linux.

Re: sendmail: Introduction and Configuration

Anonymous's picture
Submitted by Anonymous on Wed, 08/28/2002 - 02:00.

Glad to help

Re: sendmail: Introduction and Configuration

Anonymous's picture
Submitted by Anonymous on Wed, 07/31/2002 - 02:00.

Thank you so very much. I have been without email services on my server for a week because my new host doesn't "manage the servers". I actually did all the steps in reverse because I couldn't find a good (and short) guide, until I found this page using google.

Re: sendmail: Introduction and Configuration

Anonymous's picture
Submitted by Anonymous on Tue, 07/30/2002 - 02:00.

Thank you so much... This is the best article on how to configure sendmail, I tried for 3 days to get this thing work and thanks to this article is working!!

Re: sendmail: Introduction and Configuration

Anonymous's picture
Submitted by Anonymous on Sun, 07/28/2002 - 02:00.

use the chkconfig command for xinetd specific services. After you install the imap package, run chkconfig --list. This will list all rc startup services. Under xinetd you will see the xinetd specific services. ipop2, ipop3, imap, imaps, etc should all say 'no' under startup. Do a 'chkconfig ipop3 on' will turn on ipop3 for all runlevels. Using chkconfig accomplishes the same thing as editing the /etc/xinetd.d/ipop3 but is a cleaner way, and works for all startup rc scripts.

Re: sendmail: Introduction and Configuration

Anonymous's picture
Submitted by Anonymous on Sun, 07/21/2002 - 02:00.

Excellent, I have been having problems with this for a week now, the article is direct strait forward and most of all correct.

A big thank you.

Mike

Re: sendmail: Introduction and Configuration

Anonymous's picture
Submitted by Anonymous on Tue, 07/09/2002 - 02:00.

I'm senior Computer engineer from KMITL ( THAILAND ) My project is webmail opensource. I develop twig and must to config sendmail . I try for a week about sendmail. This article is greate,awful,Even i use mandrake but it work. Thank a lot. thank opensource. My email address is maydream@hotmail.com

Re: sendmail: Introduction and Configuration

Anonymous's picture
Submitted by Anonymous on Mon, 06/24/2002 - 02:00.

It Really Works

Thanx a lot for such an article.

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