Manual Email Settings steps-
For Server Type: POP3
Very first just enter your username and your accurate password. After that you have to enter POP3 server - pop.att.yahoo.com and now enter port – 995. Here you have to touch Next. Kindly enter SMTP server - smtp.att.yahoo.com and enter port – 465. Now enter your username, your correct password and touch Next.
Keep in mind that when you are updating the “Use secure connection” settings then just check the “Use secure connection” box first. After that you have to update the port number but only if it is necessary. If you are having issues during sending and receiving process in 3G, then switch to Wi-Fi and try again. If having some issues then reach out att net login support services.
Here are the steps which any user can use to manually set up his/her phone for any AT&T/Yahoo server email accounts. Under email program settings field just enter pop.att.yahoo.com as incoming (POP) and smtp.att.yahoo.com as outgoing (SMTP). Just remember it that outgoing SMTP will require authentication. Set incoming mail server as POP3. For incoming and outgoing user name you have to use full AT&T email address. It should include domain e.g. email@example.com. Incoming mail port should be 995 and Outgoing mail port has to be 465. Remember that for both “Use secure connection” should be checked. If having some confusions call att uverse login helpline.