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hollan29@kas.tw: host aspmx.l.google.com[209.85.200.26] said: 550-5.7.1 Kaohsiung American School restricts delivery to student email 550-5.7.1 addresses from outside of our network. If you believe this to be in 550 5.7.1 error, please contact the school directly. - gcdp ca18e2360f4ac-83b67c69bb6si606355139f.100 - gsmtp (in reply to end of DATA command)