On Thursday Stuart wrote:
When you designate a server as '+', you are saying, "to the best of my
knowledge and ability, this server will never send forged email from this
domain."
Unless it's your own mail server you cannot say this. The plus means that
your mail comes from this server. It does not mean that all mail coming
from the server is from you.
When you designate a server as '-', you are saying, "to the best of my
knowledge and ability, this server will never send legitimate email
from this domain."
I agree.
dave