Eltek Mail-Deliver Problem

Issue

Mails are not deliver to pop id(through jbindia server) , mail send from it@eltek.in to outer domain get deliver but when send mail to   pop in 
west@eltek.in (pop id).   

Mail from Local Server , local User (it@eltek.in) --> Local Server , Local user - Getting Delivered

Mail from Local Server , Local user --> Other Domain's User (service@tetrain.com ) - Getting Delivered

Mail from other Domain User ( gmail.com ) --> Local Server , Local user (it@eltek.in) - Getting Delivered

Mail from pop Server , pop User (west@eltek.in) --> Local Server , Local user (it@eltek.in) - Getting Delivered

Mail from pop Server , pop User (west@eltek.in) --> Other Domain's User (service@tetrain.com ) - Getting Delivered

Mail from Local Server , local User --> Pop Server , Pop user ( west@eltek.in) - Not Getting Delivered

Observation

Check the local mail server . qmail running properly. Mails are deliver as shown in logs but it actually not deliver (check the Qmail-1 logs) .

We observed the eltek.in is mapped to eltekvalare.in ( virtualdomains file of qmail/control )

We check the .qmail-west file at /home/vpopmail/domains/eltekvalare.in and found that user's mail is pushed to qmail2 via .qmail-west file

When we checked the log of qmail2-send we found that mails are blocked due to no-RDNS of this server .

We cannot define RDNS/PTR for this as it is on Broadband / dynamic Ip . So we decided to bypass this sender domain (eltek.in) on Mail.jbindia.co.in .

Then check the Jbindia in

which spamdyke(spam filter)  is not allowed eltek ip to deliver mail at there local pop user.

Resolution:

Whitelist eltek domain on spamdyke on mail.jbindia.co.in

Path: /var/qmail/spamdyke/senders-whitelist-entry

As

@eltek.in

Restarted the Spamdyke , by restarting xinetd