I need to check for 'invalid' From and To headers in our inbound email (primarily to catch spam that inserts '[EMAIL PROTECTED]' into either header.) Does anyone have an example of how they did this or pointers on where to wedge it in?
open FH, "<HEADERS" or md_syslog("warning","couldn't open headers file");
my($from);
while(<FH>){
if($_ =~ /^from:/i){
$from=substr($_,5);
last;
}
}
$from contains the from address including name, similarly you can to for To header
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