whitelist_from_rcvd more than one mx record

[Gokhan ALKAN]

hi all ;
 
    i have used "whitelist_from_rcvd" option for spamassassin and it works 
successfully if domain has only one mx record . for instance i have domain.com 
and it has only one mx record . the below line is used users who have email 
address  "[EMAIL PROTECTED]".   
 
 whitelist_from_rcvd    [EMAIL PROTECTED]               domain.com
 
 what i wonder is what will happen if the "domain.com" has more than one mx 
record ?
 
 how should i configure local.cf if the domain has more than one mx record ?
       
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