SMTP Error – Could not Authenticate

  • Resolved undergroundengland123

    (@undergroundengland123)


    3 years, 2 months ago

    Hi

    We have this error message appearing, please advise.

    CLIENT -> SERVER: EHLO underground-england.com
CLIENT -> SERVER: AUTH LOGIN
CLIENT -> SERVER: [credentials hidden]CLIENT -> SERVER: [credentials hidden]SMTP ERROR: Password command failed: 535 Authentication failed: The provided authorization grant is invalid, expired, or revoked
SMTP Error: Could not authenticate.CLIENT -> SERVER: QUIT
SMTP ERROR: QUIT command failed: SMTP Error: Could not authenticate.
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