Summary: Sendmail relay problem

[Sudheesh Krishnankutty <sudheesh@softjin.com>]

Dear linuxmanagers,

Thank you Mr Bishop for your answer.

I must tell A.mydomain.com to treat mails to B.mydomain.com as local by 
adding B.mydomain.com in /etc/mail/sendmail.cw ( in 8.8.7 ).

So I did this.

 1. Added B.mydomain.com in /etc/mail/sendmail.cw of machine A.
 2. Restarted sendmail.

regards

Sudheesh

---------------------
Hi Sudheesh,

Do this:

	grep ^Fw /etc/sendmail.cf

That should tel us where your local-host-names file is, if you're using 
that:
> [root@flotsam root]# grep ^Fw /etc/sendmail.cf
> Fw/etc/mail/local-host-names

Now tell me the contents of that file.

Ideally, it should have the name a.mydomain.com in there, all by itself 
on a line.  ('service sendmail restart' should incorporate a change if 
you add it)

If that still does not work, it may be a fault of your hand-added bits 
to the MC file.  Maybe you should look into a Smart Host setup, instead 
of this bit that it looks like you've added.  A 'smart host' config is, 
to the best of my memory, a common setup to deal with just your machine 
config:  a machine (like your A) that handles local mail locally, but 
all other mail is passed off to B for processing.  In this case, B is 
your Smart Host.

  - bish

Sudheesh Krishnankutty wrote:
> Dear linuxmanagers,
> 
>   I have one problem with my mail server relay configuration.
> 
>   I have a machine A.mydomain.com that relays all the mails to B.mydomain.com
>   (where B.mydomain.com is the central Hub). It works perfectly for incoming
>   and outgoing mails.  
> 
>   But the problem happens when I do the following in machine A (relay
>   host).
> 
>   $mail root  
> 
>   Here what happens is root gets converted to root@A.mydomain.com and it
>   sends it to B.mydomain.com.  B.mydomain.com again sends it back to
>   A.mydomain.com.  This goes into an a loop till maximum hop counts is
>   reached ( which is set to 25).
> 
>   But If I say
>   $mail root@mydomain.com then it works perfectly.
> 
>   My sendmail.mc file which I used for generating sendmail.cf file in
>   A.mydomain.com (relay) contains the following 
>   
>   define(`MAIL_HUB', `B')
>   FEATURE(relay_entire_domain)
>   FEATURE(masquerade_entire_domain)
>   FEATURE(masquerade_envelope)
>   FEATURE(allmasquerade)
> 
>   MASQUERADE_AS(mydomain.com)
>   MASQUERADE_DOMAIN(mydomain.com)
>   RELAY_DOMAIN(mydomain.com)
> 
>   MAILER(local)
>   MAILER(smtp)
>   LOCAL_RULE_0
> 
>   # Send internal mail to hub.
>   R$+ < @ $* $=M . >      $# relay $@ $H $: $1 < @ $2$3 . >
> 
> 
>   LOCAL_RULESETS
> 
>   # Change bare (unqualified) hostname to our domain name in
>   # both sender and recipient addresses.
> 
>   S1
>   R$+ < @ $- > $*         $: $1 < @ $M . > $3
> 
>   S2
>   R$+ < @ $- > $*         $: $1 < @ $M . > $3
>   
> 

-- 
	"Trust me on this.  I'm supposed to be sort of a p$*&k.
	 That's why I got hired."  -- Joe Rogan, Fear Factor
					20030204-:0:10:00
-- 
Sudheesh K
Software Engineer EDA
Softjin Infotech Pvt. Ltd.
No 227/70/A Sigma Arcade 1
Marathahalli
Airport Road,
Bangalore - 560037
Phone: 91-080-5234641/2 ext 206
Fax: 91-080-5234643
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