I've done these steps but to no avail
I have a college alumni group forwarding address which I have attahced to my me.com account. I added me the college email address as an alias to my iCloud account in Preferences on MacMail . But it still won't allow me to send email as the alias address. I get the server error message everytime. Again, this is not an alias I created through the iCloud (where you are given 3 aliases to use) but a seperate forwarding email address which I would like to be able to respond to people from occasionally instead of me.com or icloud.com addresses. Is this possible? What steps am I missing?
Thanks.
Macbook, Mac OS X (10.5.5), 2 Ghz Core 2 Duo, 80 GB Hard Drive, 2 GB RAM