On 2018-04-25 06:07, mick crane wrote:
Yahoo changed something recently, and many email services now reject mails marked as from a yahoo address if they haven't been sent from a yahoo server:On 2018-04-24 20:56, J.W. Foster wrote:An error occurred while sending mail. The mail server responded: 4.7.1 <jfoster81747@yahoo.com>: Relay access denied.if using external SMTP server you sometimes have to register who is allowed to send mail with them. I had problem not been able to send mail when changed domain name but can't remember just now how resolved it.mick
https://help.yahoo.com/kb/SLN24016.htmlMy email account recently bounced some messages from this list for that reason.
-- John