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Script to find and replace only the MX entries of Specified dns zone files, with SpamExperts MX entries.



#!/bin/bash

for i in `cat domains.lst`; do

FileName=$i.db;

FileBack=$FileName"_bk";

if [ -f $FileName ]; then

find . -maxdepth 1 -type f -name $FileName | xargs sed 's/.*MX.*/'"$i."' 14400 IN MX 10 mx.spamexperts.com.\n'"$i."' 14400 IN MX 20 fallbackmx.spamexperts.eu.\n'"$i."' 14400 IN MX 30 lastmx.spamexperts.net./g' > $FileBack; mv -f $FileBack $FileName


else

echo $FileName " Doesnt Exists...................!!!!! ";

fi

done


Note:
Where domains.lst contains the domain names that needs to be replaced the MX entries with SpamExperts MX entries.




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