sendmail: Error using sendmail

I am building an application that needs to send an alert to an email address when a value is exceeded. So I am trying to debug sendmail and am using the following code.

setpref('Internet','SMTP_Server',  'mydomain.com')
setpref('Internet','E_mail',       '[e-mail]')
setpref('Internet','SMTP_Username','[e-mail]')
setpref('Internet','SMTP_Password','password')

sendmail('[e-mail]','RADAR Test','Test message')

However, I get the following message:

Error using sendmail (line 171)
Could not connect to SMTP host: mydomain.com, port: 25;
Connection refused: connect

Error in tryEmail (line 12)
sendmail('[e-mail]','RADAR Test','Test message')

Of course the emails and passwords are actual working values in my real code. The mydomain is my own email account I own with a 3rd party hosting provider. I'd be grateful for any hints.

Thanks, Jeff

Answer 1

[Azzi Abdelmalek]

This line setpref('Internet','SMTP_Server', 'mydomain.com') should be

setpref('Internet','SMTP_Server',  'smtp.mydomain.com')

[Azzi Abdelmalek]

have you tried?

setpref('Internet','SMTP_Server','mail');

Answer 2

[Jeff]

Thanks, Azzi. I've tried that as well. For my settings, I believe it should actually be mail.mydomain.com. At least that is what my host company specified.