A criação do Database Mail com T-SQL retorna "o nome principal não é válido"

A configuração do Database Mail é muito longa.

Então eu quero criar um script que crie automaticamente para mim

DECLARE @YourEmail NVARCHAR(50) SET @YourEmail = '[email protected]' --Put here your E-mail
DECLARE @YourPassword NVARCHAR(50) SET @YourPassword = 'MyPassword' --Put here your E-mail
DECLARE @YourSMTPSserver NVARCHAR(50) SET @YourSMTPSserver = 'MySMTPserver' --Put here your SMTP Server
DECLARE @YourPort int SET @YourPort = '25' --Put here your SMTP port

-- Create a Database Mail account  
EXECUTE msdb.dbo.sysmail_add_account_sp  
    @account_name = 'SQL_Spring_Cleaning_Account',  
    @description = 'Mail account for SQL_Spring_Cleaning.',  
    @email_address = @YourEmail,  
    @replyto_address = @YourEmail,
    @display_name = 'SQL_Spring_Cleaning Mailer',  
    @mailserver_name = @YourSMTPSserver, 
    @port = @YourPort,
    @use_default_credentials = 0,
    @username = @YourEmail,
    @password = @YourPassword;


-- Create a Database Mail profile  
EXECUTE msdb.dbo.sysmail_add_profile_sp  
    @profile_name = 'SQL_Spring_Cleaning_Profile',  
    @description = 'Profile used for SQL_Spring_Cleaning mail.' ; 

-- Add the account to the profile  
EXECUTE msdb.dbo.sysmail_add_profileaccount_sp  
    @profile_name = 'SQL_Spring_Cleaning_Profile',  
    @account_name = 'SQL_Spring_Cleaning_Account',  
    @sequence_number =1 ; 

-- Grant access to the profile to the DBMailUsers role  
EXECUTE msdb.dbo.sysmail_add_principalprofile_sp  
    @profile_name = 'SQL_Spring_Cleaning_Profile',  
    @principal_name = 'ASPIRES3\franc',  
    @is_default = 0 ; 

Mas infelizmente o SSMS me retorna:

Msg 14607, Level 16, State 1, Procedure sysmail_verify_principal_sp, Line 49 [Batch Start Line 0]
principal name is not valid

O erro está obviamente online

@principal_name = 'ASPIRES3\franc', 

mas eu não entendo o que há de errado com isso