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via blogspot.com by Unknown author, 1 year ago
501 5.1.3 Invalid address
via blogspot.com by Unknown author, 2 years ago
via Jenkins JIRA by Willem Verstraeten, 1 year ago
550 5.1.1 <Development>: Recipient address rejected: User unknown in local recipient table
com.sun.mail.smtp.SMTPAddressFailedException: 501 5.1.3 Invalid address at com.sun.mail.smtp.SMTPTransport.rcptTo(SMTPTransport.java:1196)