I can receive emails from other addresses with no problems, but 2 different people with yahoo accounts had this issue. Both on iphones.
Is this a problem on my end or theirs?
From: MAILER-DAEMON@yahoo.com Date: June 28, 2013, 9:26:18 AM EDT To: firstname.lastname@example.org Subject: Failure Notice Sorry, we were unable to deliver your message to the following address. email@example.com No MX or A records for example.com