SanJ,
Are your subscribers being added with the
Simpler PHP insertion script?
If so, apart from the obvious addition of an "ignore_removed" LMP option, you could enable the "signup-xtra.php" file to do some post-signup processing. The thing is the users' entry would be overwritten so the previous data would not be available. You would need to add the user to two lists originally, then check if the user is still on the dummy list and re-remove them so they don't receive followups. This would, however, result in the welcome message being sent from the list that you don't want them back on - is that a problem?
"ignore_removed" would be done as follows. In signup.php, change this:
if($xcnf<>'1'){
// overwrite
$uids[$list] = $xuid;
To this:
if($xcnf<>'1'){
if($ignore_removed){
$dupes[$list] = $xuid; // call it a dupe
} else {
// overwrite
$uids[$list] = $xuid;
}
Then in your signup URL, add "&ignore_removed=1"
Regards