var sidebar_align = 'right';
var content_container_margin = parseInt('350px');
var sidebar_width = parseInt('330px');
a lot of mail delivery failure notice
i'm getting quite a few mail failure or return email. i don't think any of my customers is spamming. should i worry about this? how do i check if someone is spaming?
If the sender's ISP makes only one attempt to deliver a message it may be suspected as SPAM, If the sender's ISP continues to try to send the message it may not be treated as a spam.