What is a good email format or phrasing, etc, to use for a system generated notification email such as 'great! your account is read, here is your credentials' and so forth. I want to think of a good one that is rarely likely to go into the Spam folder of customers who could be behind who knows what kind of enterprise network mail filters...
TO BE SPECIFIC: _@____.com is what I am looking for more than just the contents and subject of message, but any comment about those is helpful too.