Why The Mailer Goes Down With This Error > com.sun.mail.smtp.SMTPSendFailedException: 421 4.3.2 Service not available
(Doc ID 2480828.1)
Last updated on DECEMBER 08, 2022
Applies to:Oracle Workflow - Version 184.108.40.206 to 12.1.3 [Release 11.5.10 to 12.1]
Oracle Workflow - Version 12.1.3 and later
Information in this document applies to any platform.
Why is the mailer going down with this error and not sending emails?
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