I am getting an "Invalid Server Response" message after attempting to send out pdf attachment in Acrobat Pro DC. I have the Incoming Server as imap.secureserver.net using Port 143. The radio button is set to NONE on "Use Secure Connection". And the Outgoing Server as smtpout.secureserver.net using Port 25 or 80 or 3535 and the radio button set to NONE on "Use Secure Connection". I have "Use IMAP Authentication Details" checked off on the box.
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