Sendmail relay problem

[Sudheesh Krishnankutty <sudheesh@softjin.com>]

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
  

-- 
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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