how to use sendmail as a client

Tue Sep 7 08:57:45 UTC 2004

What does your /var/log/maillog say?
If your sendmail service is started, it should send the mail out through 
the smarthost machine and you should see it in your maillog.

On Tue, 7 Sep 2004, Lito Lampitoc wrote:

> thanks...
>
> just knowing how to configure my sendmail to use a different mail server in 
> my network will do,
> a telnet to port 25 of my mail server (box2) works well, but sending mail via 
> sendmail in my local machine (box1) has this message when I execute this 
> command:
>
> cat testfile | /usr/lib/sendmail -bm -t -v
>
> ral at codewan.com.ph... Connecting to [127.0.0.1] via relay...
> 220 localhost.localdomain ESMTP Sendmail 8.12.10/8.12.10; Tue, 7 Sep 2004 
> 16:24:36 +0800
>>>> EHLO localhost.localdomain
> 250-localhost.localdomain Hello makati [127.0.0.1], pleased to meet you
> 250-ENHANCEDSTATUSCODES
> 250-PIPELINING
> 250-8BITMIME
> 250-SIZE
> 250-DSN
> 250-ETRN
> 250-AUTH DIGEST-MD5 CRAM-MD5
> 250-DELIVERBY
> 250 HELP
>>>> MAIL From:<root at localhost.localdomain> SIZE=115 
> AUTH=root at localhost.localdomain
> 250 2.1.0 <root at localhost.localdomain>... Sender ok
>>>> RCPT To:<ral at codewan.com.ph>
>>>> DATA
> 250 2.1.5 <ral at codewan.com.ph>... Recipient ok
> 354 Enter mail, end with "." on a line by itself
>>>> .
> 250 2.0.0 i878Oaoh031590 Message accepted for delivery
> ral at codewan.com.ph... Sent (i878Oaoh031590 Message accepted for delivery)
> Closing connection to [127.0.0.1]
>>>> QUIT
> 221 2.0.0 localhost.localdomain closing connection
>
>
> I wonder why it is using 127.0.0.1 (localhost) as smtp to connect to, and how 
> will I set it to a different smtp server?
> I already modified the following line in my sendmail.mc:
>
> define(`SMART_HOST',`cebu.codewan.com.ph')
>
> where 'cebu' is my mail server (box2)..
>
> If only I could change the default smtp server setting (127.0.0.1) then rest 
> would'nt be a problem
>
>
> Vipul Ramani wrote:
>
>> Greetings....
>> 
>> Can u please conformed this things.....!!!!!!
>> 
>> DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl
>> 
>> This tells sendmail to only look at the loopback device, and not the
>> network interface for incoming mail.  Change 127.0.0.1 to your eth0 ip
>> or comment it out by placing a dnl in front of it like this:
>> 
>> dnl DAEMON_OPTIONS(`Port=smtp,Addr=127.0.0.1, Name=MTA')dnl
>> 
>> There's also no problem in deleting it.  Anytime you edit sendmail.mc,
>> you have to build a new sendmail.cf.  This is done with the following
>> command:
>> 
>> m4 /etc/mail/sendmail.mc > /etc/mail/sendmail.cf
>> 
>> Now you need to tell sendmail who the local domains and hosts are. Open 
>> /etc/mail/local-host-names and add the name of your localdomain. In the 
>> future this will be the registered domains that are hosted by
>> this server.  The next thing you need to do is to allow relaying for
>> this domain.  To do that, open /etc/mail/access and add a line that
>> looks like this:
>> 
>> mydomain.com     RELAY
>> 
>> You will see other lines aready there for localhost and 127.0.0.1 - do
>> NOT delete those lines.  Now you need to create the database:
>> 
>> makemap hash /etc/mail/access.db < /etc/mail/access
>> 
>> 
>> 
>> 
>> 
>> Now just restart sendmail and mail should start coming in.
>> On Thu, 26 Aug 2004 08:27:08 -0400, Reuben D. Budiardja
>> <techlist at voyager.phys.utk.edu> wrote:
>> 
>>> On Thursday 26 August 2004 06:47, Lito Lampitoc wrote:
>>> 
>>>> I want it to be automated, for example, logwatch or tripwire by 
>>>> default
>>>> sends e-mail  to  root user in box1 whenever there is unusual 
>>>> activity,
>>>> what I want is, these e-mails or reports redirected to my admin 
>>>> account
>>>> in box2.  How? and shall I need a running sendmail daemon here?
>>>> 
>>> The easies way, is to edit /etc/aliases on box1 and have the line:
>>> 
>>> root: youremailaddress at box2.com
>>> 
>>> then run (as root)
>>> $> newaliases
>>> 
>>> that way all the email (ie. logwatch report, tripwire, etc) sent to the 
>>> root
>>> on box1 will automatically be forwarded to youremailaddress at box2.com.
>>> 
>>> And yes, AFAIK sendmail service has to run for that to work. By default
>>> sendmail does not listen to the external interface (only local 
>>> loopback). If
>>> you're still not convinced that's secure enough, use tcpwrapper to 
>>> refused
>>> all connection to sendmail in /etc/host.deny, and/or block port 25 using
>>> firewall.
>>> 
>>> RDB
>>> 
>>> --
>>> Reuben D. Budiardja
>>> Dept. Physics and Astronomy
>>> University of Tennesse, Knoxville, TN
>>> 
>>> -----BEGIN GEEK CODE BLOCK-----
>>> Version: 3.12
>>> GIT/M/MU/P/S d-(++) s: a-- C++(+++) UL++++ P-- L+++>++++ E- W+++
>>> N+ o? K- w--- !O M- V? !PS !PE Y PGP- t+ 5 X R- tv+
>>> b++>+++ DI D(+) G e++>++++ h+(*) r++ y->++++
>>> ------END GEEK CODE BLOCK------
>>> 
>>> 
>>> 
>>> 
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>>> 
>> 
>> 
>> 
>
>
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