The workaround worked. Although it still gave me the error, I was able to get the address back into the contact. I could not search for the email address - it returned no result, but got the error when I tried to add it to the contact. Ultimately, the user had to re-subscribe. I am all set now, and will use the workaround in the future. My apologies for showing my irritation. It's a frustrating problem.  ... View more

Same problem here. Multiple people have managed our account, so at some point the user's email may have been deleted. I now cannot add the email to the contact who still exists, but without an email address. I see from the above complaints that Constant Contact doesn't resolve customer's problems. Constant Contact doesn't care about its customers. Time to switch to. ... View more