Fixed it by bypassig ATT & used yahoo servers directly. Changed incoming from pop.att.yahoo.com to pop.mail.yahoo.com (kept the port 465) and changed outgoing from smtp.att.yahoo.com to smtp.mail.yahoo.com (kept the port 995). Outbound is now working.
Fixed it by bypassig ATT & used yahoo servers directly. Changed incoming from pop.att.yahoo.com to pop.mail.yahoo.com (kept the port 465) and changed outgoing from smtp.att.yahoo.com to smtp.mail.yahoo.com (kept the port 995). Outbound is now working.