Returned mail: see transcript for details

The original message was received at Wed, 21 May 2025 14:37:57 -1000 from m0313025.ppops.net [127.0.0.1]
----- The following addresses had permanent fatal errors ----- sbaniay@hawaii.edu (reason: 550-5.1.1 The email account that you tried to reach does not exist. Please try)
----- Transcript of session follows ----- ... while talking to aspmx.l.google.com.:
DATA
<<< 550-5.1.1 The email account that you tried to reach does not exist. Please try <<< 550-5.1.1 double-checking the recipient's email address for typos or <<< 550-5.1.1 unnecessary spaces. For more information, go to <<< 550 5.1.1 https://support.google.com/mail/?p=NoSuchUser 00721157ae682-70deb9ad4easi33865697b3.233 - gsmtp 550 5.1.1 sbaniay@hawaii.edu... User unknown <<< 503-5.5.1 RCPT first. A mail transaction protocol command was issued out of <<< 503-5.5.1 sequence. For more information, go to <<< 503-5.5.1 https://support.google.com/a/answer/3221692 and review RFC 5321 <<< 503 5.5.1 specifications. 00721157ae682-70deb9ad4easi33865697b3.233 - gsmtp
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