What does a 421 error mean when trying to send mail? (Doc ID 1578488.1)

Last updated on FEBRUARY 25, 2025

Applies to:

Oracle WebCenter Sites - Version 11.1.1.6.1 and later
Information in this document applies to any platform.

What does exception "Could not connect to SMTP host: xxx.xxx.xxx, port: 25, response: 421" mean?

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