Unable to fully setup att.net email on my Ipjone and Ipad

My att.net email was working fine until I upgraded to IOS9. I deleted the account and tried to set it up again using "Yahoo" without success. I was able to add the email account using "Other" email but I only have access to the email but not to calendar, contacts, etc.

Also, after the latest upgrade I am able to receive emails but not send. All the sent items stay on the "Outbox" folder.
Please anyone have any suggestions?