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via Coderanch by Sri Ram, 1 year ago
421 Authorization failed: please authenticate by doing get message first
via Oracle Community by 843830, 2 years ago
553 sorry, Authentication failed or timed out. Please do get messages first to authenticate yourself.(#4.4.3)
via Oracle Community by 843830, 10 months ago
550-5.1.1 The email account that you tried to reach does not exist. Please 550-5.1.1 try double-checking the recipient's email address for typos 550-5.1.1 or unnecessary spaces. Learn more at 550 5.1.1 d1si12465705tid.11
via Coderanch by ahmed yehia, 1 year ago
550 Authentication requ ired. Help at <a href="" target="_blank" rel="nofollow"></a> (failed to find host nam e from IP address)
via Coderanch by Joseph Sweet, 1 year ago
530 5.7.1 Relaying not allowed. If you are MY_ISP_PROVIDER customer, please contact our support at +999 -999-9999:
via j-trac by bibeh24
, 2 years ago
553-5.1.2 We weren't able to find the recipient domain. Please check for any 553-5.1.2 spelling errors, and make sure you didn't enter any spaces, periods, 553 5.1.2 or other punctuation after the recipient's email address. o20sm633141pbt.50
com.sun.mail.smtp.SMTPAddressFailedException: 421 Authorization failed: please authenticate by doing get message first	at com.sun.mail.smtp.SMTPTransport.rcptTo(	at com.sun.mail.smtp.SMTPTransport.sendMessage(	at javax.mail.Transport.send0(	at javax.mail.Transport.send(	at MailExample.main(