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s194419@student.k12northstar.org: host aspmx.l.google.com[2607:f8b0:400e:c09::1a] said: 550-5.7.1 Your email has been rejected because you are not authorized to send 550 5.7.1 email to this recipient. - gcdp 41be03b00d2f7-7f8c1da9ddasi9428352a12.312 - gsmtp (in reply to end of DATA command)