Cannot send from Outlook 2007

[Ali]

I have just downloaded the trial version of Office 2007 & Outlook
automatically set up with my email provider.
All of my inbox downloaded automatically & any new emails come in.
But when ever i try & send an email I receive a System Administrator message
which says
"Your message did not reach some or all of the intended recipients."
"The following recipient(s) cannot be reached:"
" 550 5.7.1 Unable to relay "
Any ideas how to fix this?

Thanks

 

[Roady [MVP]]

Configure your SMTP server to use authentication and try again.

 

[Ali]

Can you tell me how I do this please?

Configure your SMTP server to use authentication and try again.

 

[Roady [MVP]]

In your account setting press More Options and then select the Outgoing
Server tab

 

[Ali]

Thanks for this, but when i tried it, I went into the 'Email' tab, then 'More
Settings' & found the 'Outgoing Server' tab.
It was all shaded out, so I ticked the "My outgoing server (SMPT) requires
authentication", then used the 'log on using' which it automatically entered,
then tried clicking on "Use same settings as my incoming mail server", but
when I tried to send a "Test Account Settings", it replied with the following
error:

"Send test email message: None of the authentication methods supported by
this client are supported by your server"

If it helps to know, my email provider is 'SmarterMail Enterprise 4.3'.

Im afraid i am useless when things dont work as they should & have no idea
how these things link together, etc.

By the way, sorry about my initial message being sent twice - i didn't think
it had sent the original, as i couldn't confirm the email.

Any further help you can give me would be very much appreciated.

 

[Brian Tillman]

If it helps to know, my email provider is 'SmarterMail Enterprise
4.3'.

And when you called your email provider's support staff, what did they say?