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Editorial Team
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Asked: 2026-05-12T21:38:08+00:00

I have a trigger where I want to send out an email on updates

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I have a trigger where I want to send out an email on updates to a row in a table SalesClosing. Now the user (dbuser) who execute the trigger has very limited permissions. So I want the trigger to execute as dbmailuser. A user who has rights to send out email. I tested that dbmailuser can execute sp_send_dbmail when logged in as that user. When the trigger fires though, I get an error can’t execute sp_send_dbmail. So I logged in as dbuser
, ran EXECUTE AS LOGIN = ‘dbmailuser’; and was able to execute sp_send_dbmail. Now why can’t I do that in a trigger. I’m using sql server 2008. Below is the trigger ddl.

alter TRIGGER SalesClosingTrigger ON SalesClosing
WITH EXECUTE AS 'dbmailuser'
for insert, update
AS
BEGIN
  EXEC msdb.dbo.sp_send_dbmail
  --@profile_name = 'Test_Email_Profile',
  @recipients='testemail@test.com',
  @body = 'This is a test for Database Mail.',
  @body_format = 'TEXT',
  @subject = 'Database Mail Test'
END 
GO
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1 Answer

  1. Editorial Team

    This is due to execute-as-user scoping – context switching to a database-level user is by default scoped to only that database (and the code above is executing outside the given database across to msdb), and the database-only authenticator is invalid. See the link above for multiple options on how to resolve/work-around.

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