My Oracle Support Banner

Ora-12012 and ORA-29278 Attempting to Utilize UTL_SMTP (Doc ID 353834.1)

Last updated on MARCH 04, 2022

Applies to:

PL/SQL - Version and later
Information in this document applies to any platform.


Attempting to send email using UTL_SMTP on Microsoft Windows  calls for UTL_SMTP fail with:

ORA-29278: SMTP transient error: 421 Service not available
ORA-06512: at "SYS.UTL_SMTP", line 17
ORA-06512: at "SYS.UTL_SMTP", line 96
ORA-06512: at "SYS.UTL_SMTP", line 138
ORA-06512: at line 4

Attempts to ping the server show communications are successful, yet the ethereal network analysis utility shows that the SMTP requests do not get to the network.


To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.