503 Valid RCPT command must precede DATA what is this
N neo [mvp outlook] Jul 23, 2008 #2 It means that the mail server didn't see who the e-mail should go to before receiving that data (body) of the e-mail. Many mail servers do sanity checks to prevent spam and this could be interferring with whatever you are using to send e-mail.
It means that the mail server didn't see who the e-mail should go to before receiving that data (body) of the e-mail. Many mail servers do sanity checks to prevent spam and this could be interferring with whatever you are using to send e-mail.
