Permalinks 404 error for non-existent sub directories

Hi Greg,

Thanks for the help. It seems all the entries were coming from the same IP (89.161.135.94) and from a bit of Googling I can see that this IP has been listed on spam databases. I have added the following as you suggested so hopefully that will take care of things for the time being:

Order Deny,Allow

Deny from 89.161.135.94

What is the jform POST/GET variable?

Currently my subscription form code is as follows:

<form id="subscribeform" method="post" action="/thankyou-subscription.php" class="form-inline">
<div class="input-group">
<?php if (@$authUserNum): ?>
<?php echo htmlencode($authUserEmail); ?>
<?php else: ?>
<input type="email" id="e" name="e" class="form-control" placeholder="Email address" value="<?php echo htmlencode(@$_REQUEST['e']) ?>" required />
<?php endif ?>
<input type="hidden" name="submitForm" value="1" />
<input type="hidden" name="n" value="<?php echo htmlencode(@$_REQUEST['n']); ?>" /><?php // subscriber num ?>
<input type="hidden" name="a" value="<?php echo htmlencode(@$_REQUEST['a']); ?>" /><?php // subscriber authkey ?>
<input type="hidden" name="m" value="<?php echo htmlencode(@$_REQUEST['m']); ?>" /><?php // message num ?>
<input type="hidden" name="lists[]" value="<?php echo htmlencode($lists[0]['num']); ?>" <?php echo @$checkedAttr; ?> />
<span class="input-group-btn">
<button class="btn btn-success" id="subscribe" name="subscribe" type="submit" value="Update Subscriptions"><strong>Subscribe</strong></button>
</span>
</div>
</form>

If I am not using the jform POST/GET variable then could I just insert your suggested "if" statement above line 3? So it would be as follows:

<form id="subscribeform" method="post" action="/thankyou-subscription.php" class="form-inline">
<div class="input-group">
<?php if( isset($_REQUEST['jform']) ) { dieWith404("Permission denied"); } ?>
<?php if (@$authUserNum): ?>
<?php echo htmlencode($authUserEmail); ?>
....

Thank you for your help.

Regards,

Greg