I am just setting up a new IMAP account in Outlook for mac 2011.  

I'm using SiteGround as my server and they have advised that I need to put the following in the incoming and outgoing server field: securesgp18.sgcpanel.com

So far I can receive emails but for some reason all emails I try and send just sit in my outbox.

Can someone advise if this is because of the outgoing server information?  One of my friends said that in the outgoing server section is should relate to my wifi settings but i'm not computer whizz and I desperately need this to work!

Any help would be gratefully received