Hi @RoopakG   I can see you have also posted this experience on another thread here in the Community. I would however like to post our response in this thread as well.  We always suggest having your contact check their spam folder or their promotions tab if they are using a  Gmail account. We can also troubleshoot this further for you  if you can please email us the address you are working with. Please send your email to  social_support(at)constantcontact(dot)com. ... View more

Hello @Allview,   I'm sorry to hear that you are having issues with a campaign email. Could you tell me the name of the campaign you are experiencing this with?  I do see some emails in our Legacy editor, so it is possible that reusing a block from a copied email could be causing this.  If you have not already, I would recommend having a look at using the 3G Editor.   ... View more