I looked through all of the suggestions that came up when I entered 'Soft Bounce' in the subject line. But none of them address the specific message that I am getting; 501 5.5.2 RCPT TO syntax error - parse exception
this is my first attempt at sending an email from CD, and my 'marketing list' is a list of all internal email addresses. All of them show that they allow 'Any' contact method.
I really need some help understanding why this has happened and what I can do to resolve it.