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240525@student.tmisd.us: host aspmx.l.google.com[2607:f8b0:400e:c0a::1b] said: 550-5.7.1 This message has been rejected as this student is not able to send or 550 5.7.1 receive external mail. - gcdp ct24-20020a056a000f9800b00682ad3475d1si2029823pfb.92 - gsmtp (in reply to end of DATA command)