said by lev:The subject said new mail server settings, not new mail servers. I'm aware they still point to a yahoo domain name, and are likely the same servers. The problem I pointed out was with the SSL certificate people would encounter.
The setting : smtp.sbc.mail.am0.yahoodns.net
must be REALLY old since I don't ever remember seeing it and I have had SBC (now ATT) DSL for several years. Until the inbound / outbound settings, the correct setting would have been smtp.att.yahoo.com and pop.att.yahoo.com. In fact, several people I work with still use these settings without a problem. As I work with them , I have been changing them to the inbound / outbound settings, just to avoid problems in the future.
Since it still points to the same servers, I would think it unlikely that it would solve the ATT email problem that crops up every now and again. I fact I have gotten the error even after I changed my own settings (several months ago).